小学数学简便计算题。

242-125+358-275 800-127-75-273

小学数学简便算法题 小学数学简便算式大全小学数学简便算法题 小学数学简便算式大全


小学数学简便算法题 小学数学简便算式大全


= 242+358-(125+275) =800-(127+273)-75

= 600-400 =800-400-75

= 200 =400-75

=325

两道题都用了交换律,交换时要注意连带数字前面的运算符号一起交换。

简便计算方法:带符号搬家,凑整,

242-125+358-275=(242+358)-(275+125)=600-400=200

800-127-75-273=800-(273+127)-75=800-400-75=325

2100÷42=2100÷7÷6=300÷6=50

630÷14=630 ÷7÷2=90÷2=45

242-125+358-275 800-127-75-273

=(242+358)-(125+275) =800-(127+273)-75

= 600-400 =800-400-75

=200 =325

=(242+358)-(125+275) 800-(127+273)-75=325

=200

242+358-(125+275)=200

800-(127+273)-75=325

242-125+358-275

=242+358-(125+275)

=600-400

=200

800-127-75-273

=800-(127+75)-273

=800-200-273

=327

小学数学简便计算题

小学六年级数学总复习资料(六) 【简便计算】

1990÷4=497....2(余下2个数,然后4个数1组共有497组)

1+2-3-4+5+6-7-8+9+10-......+1990

=1+2+(-3-4+5+6)+(-7-8+9+10)+(-11-12+13+14)+....+(-1987-1988+1989+1990)

=1+2+4+4+4+....+4

=1+2+4×497

=1+2+4×(500-3)

=3+4×500-4×3

=3+2000-12

=19

小学数学简便计算题30道

4.02+5.4+0.98

5.17-1.8-3.2

13.75-(3.75+6.48)

3.68+7.56-2.68

7.85+2.34-0.85+4.66

35.6-1.8-15.6-7.2

3.82+2.9+0.18+9.1

9.6+4.8-3.6

7.14-0.53-2.47

5.27+2.86-0.66+1.63

13.35-4.68+2.65

47.8-7.45+8.8

0.398+0.36+3.64

15.75+3.59-0.59+14.25

42.5-(6.07+1.13)

73.8-1.64-13.8-5.36

66.86-8.66-1.34

0.25×16.2×4

3.72×3.5+6.28×3.5

36.8-3.9-6.1 2

5.48-(9.4-0.52)

4.8×7.8+78×0.52

3.6×102

6.4×0.25+3.6÷4

32+4.9-0.9

4.8-4.8×0.5

(1.25-0.125)×8

4.8×100.1

56.5×9.9+56.5

7.09×10.8-0.8×7.09

4.2÷3.5

320÷1.25÷8

18.76×9.9+18.76

3.52÷2.5÷0.4

4.78÷0.2+3.44

3.9-4.1+6.1-5.9

0.49÷1.4

1.25×2.5×32

3.6-0.6×2

3.65×10.1

3.6-3.6×0.8

15.2÷0.25÷4

5.6÷3.5

9.6÷0.8÷0.4

4.2×99+4.2

0.89×100.1

146.5-(23+46.5)

17.8÷(1.78×4)

5.83×2+4.27

(45.9-32.7)÷8÷0.125

9.7×99+9.7

4.36×12.5×8

15.6×13.1-15.6-15.6×2.1

0.65×101

27.5×3.7-7.5×3.7

8.54÷2.5÷0.4

3.83×4.56+3.83×5.44

x+3.86=5.46 17.89-x=12.89 40.8+x=57.3 x-3.25=16

2x+0.82=8.2 3+0.5x=7 7.8÷x=2.6 80x÷4=12

5-0.9x=2.75 2x+0.4x=48 6-2x+6x=18 35x+13x=9.6

0.52×5-4x=0.6 0.7(x+0.9)=42 1.3x+2.4×3=12.4

3.5x = 140 2x +5 = 40 15x+6x = 168

5x+1.5 = 4.5 13.7—x = 5.29 4.2 × 3—3x = 5.1 (写出检验过程)

20.5-4x=8.1 3.6x÷1.2=9.75

18×1.5-1.7x=13.4 18.5x-9.9x=1.721 9.2x+1.5x=32.1 7.2×5-8x=11.24x+3×0.7=6.5

(x-0.5)=1.6

3x×2.34=4.4 1.44÷x=0.4

(口算)

0.6×1.2= 0.84÷0.6= 4.5×0.1=

15×0.4= 0.1×0.5= 2.8÷7=

100÷0.01= 1.4×3= 0.72÷8=

6÷0.03= 0.5×0.6= 40×0.9=

4÷0.5= 7×2.1= 8.89+0.1=

24×0.25= 0.1÷0.01= 2.4×0.8=

9×0.4= 10×0.01= 30.2-3.02=

4.3-0.25= 1-0.82= 9.6÷0.3=

2.6×0.01= 0×25.4= 4.8×0.4=

7.2+2.8=

12×2.5=

2.63+0.37=

0.7×16-16×0.2=

0.96÷0.3=

1.5-4.5=

2.5×0.4

1.4×2.5×4=

8-2.5=

6÷1.2=

9.2÷2.3=

24÷4+56÷4=

0.36+0.64=

4÷0.25=

1.8×5=

30×(200+3)=

8.4÷4.2=

8×1.5=

4.8÷0.3=

2.73+1.5×4=

1、0.25×1.25×32

2、104×25

3、0.56+2.73+1.44+5.27

4、6×12+6×8

5、2.08+6.23+2.12

6、15.7-9.5-0.5

7、25/8×4/5

8、4.02+5.4+0.98

9、13×99

10、2.46+3.2-2.46+3.2

11、(5/7+8/21)×42

12、5.17-1.8-3.2

13、13.75-(3.75+6.48)

14、7.85+2.34-0.85+4.66

15、47.45+8.8 -7.45

16、15.75+3.59-0.59+14.25

17、4.8×7.8+78×0.52

18、7.14-0.58-2.42

19、25×7×4

20、125×6×8

21、3/8×11×8

22、4/51×5×102

23、24.5-(7+4.5)

24、101×36

25、(125+8)×8

26、(25+4)×4

27、(25+4)÷1/4

28、8.23+4.56+1.77+5.44

29、19+5.28-4.28

30、5×25×125×64

我用了近1小时,呵呵,互相帮助吧!……

4.02+5.4+0.98

5.17-1.8-3.2

13.75-(3.75+6.48)

3.68+7.56-2.68

7.85+2.34-0.85+4.66

35.6-1.8-15.6-7.2

3.82+2.9+0.18+9.1

9.6+4.8-3.6

7.14-0.53-2.47

5.27+2.86-0.66+1.63

13.35-4.68+2.65

47.8-7.45+8.8

0.398+0.36+3.64

15.75+3.59-0.59+14.25

42.5-(6.07+1.13)

73.8-1.64-13.8-5.36

66.86-8.66-1.34

0.25×16.2×4

1、0.25×1.25×32

2、104×25

3、0.56+2.73+1.44+5.27

4、6×12+6×8

5、2.08+6.23+2.12

6、15.7-9.5-0.5

7、25/8×4/5

8、4.02+5.4+0.98

9、13×99

10、2.46+3.2-2.46+3.2

11、(5/7+8/21)×42

12、5.17-1.8-3.2

13、13.75-(3.75+6.48)

14、7.85+2.34-0.85+4.66

15、47.45+8.8 -7.45

16、15.75+3.59-0.59+14.25

17、4.8×7.8+78×0.52

18、7.14-0.58-2.42

19、25×7×4

20、125×6×8

21、3/8×11×8

22、4/51×5×102

23、24.5-(7+4.5)

24、101×36

25、(125+8)×8

26、(25+4)×4

27、(25+4)÷1/4

28、8.23+4.56+1.77+5.44

29、19+5.28-4.28

30、5×25×125×64

2584125=(254)(8125)=100000

1254200=1258254=(1258)(254)=100000

102-30=100-30+2=70+2=72

98+54=100+54-2=154-2=152

36+298=36+300-2=336-2=334

89-66=90-66-1=24-1=23

812+88=8(12+8)=820=160

254+475=4(25+75)=4100=400

156-56=6(15-5)=610=60

9699+994=99(96+4)=900=9900

6325+6375=63(75+25)=63100=6300

24(9+6-5)=2410=240

65-72+15=65+15-72=80-72=8

36+(6-2)=36+6-2=42-2=40

25(4+8)=254+258=100+200=300

1236+1234=123(6+4)=12310=1230

1000+8+2+1000=(1000+1000)+(8+2)=2000+10=2010

10963-639=63(109-9)=63100=6300

95+12+87+5=(95+5)+(87+12)=100+100=200

24/(4+6+2)=24/4+24/6+24/2=6+4+12=22

549+54=549+541=54(9+1)=5410=540

1252532=1252584=(1258)(254)=100000

120138+80138=138(120+80)=13800

1.4254=1.4(254)=1.4100=140

133+137=13(3+17)=1320=260

68+98=(68+100)-2=168-2=166

96-30=100-30-4=70-4=66

4968+5168=68(49+51)=68100=6800

6516-656=65(16-6)=6510=650

0.716-160.2=160.7-0.2=160.5=8

有哟!

158+262+138

375+219+381+225

5001-247-1021-232

(181+2564)+2719

378+44+114+242+222

276+228+353+219

(375+1034)+(966+125)

(2130+783+270)+1017

99+999+9999+99999

7755-(2187+755)

2214+638+286

3065-738-1065

899+344

2357-183-317-357

2365-1086-214

497-299

2370+1995

3999+498

1883-398

12×25

75×24

138×25×4

(13×125)×(3×8)

(12+24+80)×50

704×25

25×32×125

32×(25+125)

88×125

102×76

58×98

178×101-178

84×36+64×84

75×99+2×75

83×102-83×2

98×199

123×18-123×3+85×123

50×(34×4)×3

25×(24+16)

178×99+178

79×42+79+79×57

7300÷25÷4

8100÷4÷75

16800÷120

30100÷2100

32000÷400

49700÷700

1248÷24

3150÷15

4800÷25

21500÷125

附加题:

2356-(1356-721)

1235-(1780-1665)

75×27+19×2 5

31×870+13×310

4×(25×65+25×28)

六年级简便计算题100道,要有和过程

0.4×125×25×0.8

=(0.4×25)×(125×0.8)

=10×100=1000

1.25×(8+10)

=1.25×8+1.25×10

=10+12.5=22.5

23-(123+8.8)

=23-123-8.8

=9000-8.8

=89.2

1.24×8.3+8.3×1.76

=8.3×(1.24+1.76)

=8.3×3=24.9

9999×1001

=9999×(1000+1)

=9999×1000+9999×1

=10008999

14.8×6.3-6.3×6.5+8.3×3.7

=(14.8-6.5)×6.3+8.3×3.7

=8.3×6.3+8.3×3.7

8.3×(6.3+3.7)

=8.3×10

=83

1.24+0.78+8.76

=(1.24+8.76)+0.78

=10+0.78

=10.78

933-157-43

=933-(157+43)

=933-200

=733

4821-998

=4821-1000+2

=3823

I32×125×25

=4×8×125×25

=(4×25)×(8×125)

=100×1000

=100000

9048÷268

=(2600+2600+2600+1248)÷26

=2600÷26+2600÷26+2600÷26+1248÷269

=100+100+100+48

=348

2881÷ 43

=(1290+15)÷ 434

=1290÷43+15÷43

=30+37

3.2×42.3×3.75-12.5×0.423×16

=3.2×42.3×3.75-1.25×42.3×1.6

=42.3×(3.2×3.75-1.25×1.6)

=42.3×(4×0.8×3.75-1.25×4×0.4)

=42.3×(4×0.4×2×3.75-1.25×4×0.4)

=42.3×(4x0.4x7.5-1.25x4x0.4)

=42.3×[4×0.4×(7.5-1.25)]

=42.3×[4×0.4×6.25]

=42.3×(4×2.5)

=4237

1.8+18÷1.5-0.5×0.3

=1.8+12-0.15

=13.8-0.15

=13.65

6.5×8+3.5×8-47

=52+28-47

=80-47

(80-9.8)×5分之2-1.32

=70.2X2/5-1.32

=28.08-1.32

=26.76

8×7分之4÷[1÷(3.2-2.95)]

=8×4/7÷[1÷0.25]

=8×4/7÷4

=8/7

2700×(506-499)÷900

=2700×7÷900

=18900÷900

=21

33.02-(148.4-90.85)÷2.5

=33.02-57.55÷2.5

=33.02-23.02

=10

(1÷1-1)÷5.1

=(1-1)÷5.1

=0÷5.1

=0

18.1+(3-0.299÷0.23)×1

=18.1+1.7×1

=18.1+1.7

=19.8

3.42×5.7+4.3×3.42 8.75×11-8.75 7.42×20.1

5.9×2.7+0.59×73 0.358×14.7+35.8×0.853

2.7×3.014 0.847×35 0.079×0.23

于 2020-02-05

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六年级简便计算题100道,要有和过程

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— 你看完啦,以下内容更有趣 —

六年级简便计算题100道及

55x15+45x15 =(55+45)x15 =100x15 =1500

54赞·2,105浏览2016-12-20

有100道脱式简便计算题带和过程吗

1. 0.4×125×25×0.8 =(0.4×25)×(125×0.8)=10×100=1000 2. 1.25×(8+10)=1.25×8+1.25×10 =10+12.5=22.5 3.23-(123+8.8)=23-123-8.8=9000-8.8=89.2 4.1.24×8.3+8.3×1.76 =8.3×(1.24+1.76) =8.3×3=24.9 5.9999×1001=9999×(1000+1)=9999×1000+9999×1=10008999 6. 14.8×6.3-6.3×6.5+8.3×3.7=(14.8-6.5)×6.3+8.3×3.7=8.3×6.3+8.3×3.7=8.3×(6.3+3.7)=8.3×10=83 7. 1.24+0.78+8.76=(1.24+8.76)+0.78=10+0.78=10.78 8. 933-157-43 =933-(157+43) =933-200 =733 9. 4821-998=4821-1000+22=3823 10. 32×125×25=4×8×125×25=(4×25)×(8×125)=100×1000=100000 9048÷26=(2600+2600+2600+1248)÷26=2600÷26+2600÷26+2600÷26+1248÷26=100+100+100+48=348 11. 2881÷ 43=(1290+15)÷ 43=1290÷43+15÷43=30+37 =67 3.2×42.3×3.75-12.5×0.423×16=3.2×42.3×3.75-1.25×42.3×1.6=42.3×(3.2×3.75-1.25×1.6)=42.3×(4×0.8×3.75-1.25×4×0.4)=42.3×(4×0.4×2×3.75-1.25×4×0.4)=42.3×(4x0.4x7.5-1.25x4x0.4)=42.3×[4×0.4×(7.5-1.25)]=42.3×[4×0.4×6.25]=42.3×(4×2.5) =423 12. 1.8+18÷1.5-0.5×0.3 =1.8+12-0.15=13.8-0.15 =13.65 13. 6.5×8+3.5×8-47 =52+28-47 =80-47 =33 (80-9.8)×5分之2-1.32 =70.2X2/5-1.32=28.08-1.32 =26.76 14. 8×7分之4÷[1÷(3.2-2.95)] =8×4/7÷[1÷0.25]=8×4/7÷4 =8/7 15. 2700×(506-499)÷900 =2700×7÷900 =18900÷900 =21 16. 33.02-(148.4-90.85)÷2.5=33.02-57.55÷2.3=33.02-23.02=10 17. (1÷1-1)÷5.1 =(1-1)÷5.1 =0÷5.1 =0 18. 18.1+(3-0.299÷0.23)×1=18.1+1.7×1 =18.1+1.7 =19.8 19. 9000÷72×(1.25×0.7×8)=9000÷72×7=125×7=875 20. 61-(1.25+2.5×0.7)=61-3=58 21. [(10-0.8)+9.85]-2÷0.125=19.05-2÷0.125=19.05-16=13.05 22. 5.4÷1.8+240×1.5=3+360=363 23. 9000÷72×(1.25×0.7×8)=9000÷72×7=125×7=875 24. 61-(1.25+2.5×0.7)=61-3=58 25. [(10-0.8)+9.85]-2÷0.125=19.05-2÷0.125=19.05-16=3.05 26. 408-12×24= 408 - 288= 120 27. (46+28)×60= 74 x 60= 4440 28. 42×50-17 = 2100- 17 = 2083 29. 32+105÷5 = 32 + 21= 53 30. 420×(327-238) = 420 x 89 = 37380 31. (4121+2389)÷7 = 6510 ÷7 = 930 32. 3.416÷(0.016×35) = 3.416 ÷0.56 = 6.1 33. 0.8×[(10-6.76)÷1.2] = 0.8 x(3.24÷1.2) = 0.8 x 2.7 = 2.16 34. 5.67×0.2-0.62 = 1.134-0.62 = 0.514 35.0.4×0.7×0.25 = 0.4 x 0.2 5 x 0.7 = 0.1 x 0.7 = 0.07 36. 0.78+5.436+1 = 6.216 +1 = 7.216 37. 30.8÷[14-(9.85+1.07)] = 30.8 ÷ (14 - 10.92) = 30.8÷3.08 = 10 38. [60-(9.5+28.9)]÷0.18 = (60- 38.4)÷0.18 = 21.6 ÷0.18 = 120 39. 2.881÷0.43-0.24×3.5 = 6.7 - 0.24 x3.5 = 6.7 - 0.84 = 5.86 40. 20×[(2.44-1.8)÷0.4+0.15] = 20x (0.64 ÷0.4 +0.15)= 20x(1.6 +0.15) = 20 x1.75 = 35 41. 28-(3.4+1.25×2.4) = 28 - (3.4 + 3) = 28 - 6.4 = 21.6 42. 2.55×7.1+2.45×7.1 = (2.55 + 2.45) x7.1 = 5 x7.1=35.5 43. 0.8×〔15.5-(3.21+5.79)〕 = 0.8 x (15.5 - 9) = 0.8 x 6.5 = 5.2 44.(31.8+3.2×4)÷5 = (31.8 + 12.8)÷5 = 44.6÷5 = 8.92 45. 31.5×4÷(6+3) = 126 ÷ 9 = 14 46. 2÷2.5+2.5÷2 = 0.8 + 1.25 =2.05 47. 194-64.8÷1.8×0.9 = 194 -36 x0.9 = 194-32.4 = 161.65180-705×6 = 5180 - 4230=950 48. 24÷2.4-2.5×0.8 =10 -2=8 49. 405×(3213-3189) =405x24 = 9720 59. 125×(97-81) =125x16 =2000 60. 6942+480÷3 = 6942 + 160 = 6782 61. 20+80÷4-20 = 20 + 20 -20 = 40 -20 = 20 62. 100÷(32-30)×0 = 100 ÷2 x0= 50 x0 = 0 63. 25×4-12×5 = 100 - 60 = 40 64. 70×〔(42-42)÷18〕=70 x (0÷18) = 70x0 = 0 65. 75×65+75×35 = 75 x (65 +35) = 75x100 = 7500 66. 6-1.6÷4= 6- 0.4 = 5.6 67. 5.38+7.85-5.37= 13.23 - 5.37=7.86 68. 7.2÷0.8-1.2×5=9 - 6 =3 69. 6-1.19×3-0.43= 6-3.57 - 0.43 = 6- (3.57 + 0.43) = 6-4 = 2 70. 6.5×(4.8-1.2×4)= 6.5 x(4.8 - 4.8 )=6.5 x0 = 0 71. 0.68×1.9+0.32×1.9 = (0.68 + 0.32) x1.9 = 1 x 1.9 = 1.9 72. 10.15-10.75×0.4-5.7 = 10.15 - 4.3 - 5.7 = 10.15 -(4.3 + 5.7)=10.15 - 10 =0.15 73. 5.8×(3.87-0.13)+4.2×3.74 = 5.8 x 3.74 +4.2 x 3.74 = (5.8 +4.2)x3.74 = 10 x 3.74 = 37.4 74. 32.52-(6+9.728÷3.2)×2.5 = 32.52 - (6+3.04)x2.5 = 32.52 - 9.02 x 2.5 = 32.52 -22.55 = 9.97 75.(136+64)×(65-345÷23)= 200x(65-15) = 200x 50=10000 76. 0.4×125×25×0.8 =(0.4×25)×(125×0.8)=10×100=1000 77. 1.25×(8+10) =1.25×8+1.25×10=10+12.5=22.5 78. 23-(123+8.8) =23-123-8.8=9000-8.8=89.2 79. 1.24×8.3+8.3×1.76 =8.3×(1.24+1.76)=8.3×3=24.9 80. 9999×1001 =9999×(1000+1)=9999×1000+9999×1 =10008999 81. 14.8×6.3-6.3×6.5+8.3×3.7 =(14.8-6.5)×6.3+8.3×3.7=8.3×6.3+8.3×3.7 82. 8.3×(6.3+3.7) =8.3×10 =83 83. 1.24+0.78+8.76 =(1.24+8.76)+0.78 =10+0.78 =10.78 84. 933-157-43 =933-(157+43)=933-200=733 85. 4821-998 =4821-1000+2=3823 86. I32×125×25 =4×8×125×25 =(4×25)×(8×125)=100×1000 =100000 87. 9048÷268=(2600+2600+2600+1248)÷26=2600÷26+2600÷26+2600÷26+1248÷269=100+100+100+48=348 88. 2881÷ 43 =(1290+15)÷ 434=1290÷43+15÷43=30+37 89. 1.8+18÷1.5-0.5×0.3 =1.8+12-0.15=13.8-0.15=13.65 90. 6.5×8+3.5×8-47 =52+28-47=80-47 . (80-9.8)×5分之2-1.32 =70.2X2/5-1.32=28.08-1.32=26.76 92. 8×7分之4÷[1÷(3.2-2.95)]=8×4/7÷[1÷0.25]=8×4/7÷4=8/7 93. 2700×(506-499)÷900 =2700×7÷900 =18900÷900 =21 94. 33.02-(148.4-90.85)÷2.5=33.02-57.55÷2.5=33.02-23.02 =10 95. (1÷1-1)÷5.1 =(1-1)÷5.1 =0÷5.1 =0 96. 18.1+(3-0.299÷0.23)×1=18.1+1.7×1 =18.1+1.7 =19.8 97. 4.1/27+505/2727+131313/272727 =1/27+5101/(27101)+1310101/(2710101)=1/27+5/27+13/27=19/27 98. 6.5×8+3.5×8-47 =52+28-47=80-47 99. (80-9.8)×5分之2-1.32 =70.2X2/5-1.32=28.08-1.32=26.76 100. 1.8+18÷1.5-0.5×0.3 =1.8+12-0.15=13.8-0.15=13.65 延展回答 脱式计算即递等式计算,把计算过程完整写出来的运算,也就是脱离横式的计算。 在计算混合运算时,通常是一步计算一个算式(逐步计算,等号不能写在原式上),要写出每一步的过程。一般来说,等号要往前,不与行对齐。也就是离开原式计算。 (脱字念tuo)主要掌握的是记住要先算乘、除法,后算加、减法。在乘除法连续计算时中,要按从左往右的顺序依次计算。遇到括号,要首先计算括号内部。 在脱式过程中要按运算顺序划出运算顺序线,还要做到"三核对",一要核对从书上把题抄到作业本上数字、符号是否抄对。二要核对从横式抄到草稿竖式的数字、符号是否抄对。三要核对把草稿竖式上的得数,抄到横式上是否抄对,小数点是否点对地方,有无遗漏。

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六年级简便运算100道带?

300÷125÷8 =300÷(125×8) =300÷1000 =0.3 396-96-172-28 =(396-96)-(172+28) = 300-200 = 100 12524 = 12583 = 10003 = 3000 2615 = (20+6)15 = 2015 + 615 = 300+90 =390 25994 = 25499 = 10099 = 9900 32 = 48 = 10008 = 8000 (98+98+98+98)25 = 49825 = 42598 = 10098 = 9800

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六年级数学100道计算题过程带

五加五等于十。 十加十等于二十

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根据

0.4×125×25×0.8

=(0.4×25)×(125×0.8)

=10×100=1000

1.25×(8+10)

=1.25×8+1.25×10

=10+12.5=22.5

23-(123+8.8)

=23-123-8.8

=9000-8.8

=89.2

1.24×8.3+8.3×1.76

=8.3×(1.24+1.76)

=8.3×3=24.9

9999×1001

=9999×(1000+1)

=9999×1000+9999×1

=10008999

14.8×6.3-6.3×6.5+8.3×3.7

=(14.8-6.5)×6.3+8.3×3.7

=8.3×6.3+8.3×3.7

8.3×(6.3+3.7)

=8.3×10

=83

1.24+0.78+8.76

=(1.24+8.76)+0.78

=10+0.78

=10.78

933-157-43

=933-(157+43)

=933-200

=733

4821-998

=4821-1000+2

=3823

I32×125×25

=4×8×125×25

=(4×25)×(8×125)

=100×1000

=100000

9048÷268

=(2600+2600+2600+1248)÷26

=2600÷26+2600÷26+2600÷26+1248÷269

=100+100+100+48

=348

2881÷ 43

=(1290+15)÷ 434

=1290÷43+15÷43

=30+37

3.2×42.3×3.75-12.5×0.423×16

=3.2×42.3×3.75-1.25×42.3×1.6

=42.3×(3.2×3.75-1.25×1.6)

=42.3×(4×0.8×3.75-1.25×4×0.4)

=42.3×(4×0.4×2×3.75-1.25×4×0.4)

=42.3×(4x0.4x7.5-1.25x4x0.4)

=42.3×[4×0.4×(7.5-1.25)]

=42.3×[4×0.4×6.25]

=42.3×(4×2.5)

=4237

1.8+18÷1.5-0.5×0.3

=1.8+12-0.15

=13.8-0.15

=13.65

6.5×8+3.5×8-47

=52+28-47

=80-47

(80-9.8)×5分之2-1.32

=70.2X2/5-1.32

=28.08-1.32

=26.76

8×7分之4÷[1÷(3.2-2.95)]

=8×4/7÷[1÷0.25]

=8×4/7÷4

=8/7

2700×(506-499)÷900

=2700×7÷900

=18900÷900

=21

33.02-(148.4-90.85)÷2.5

=33.02-57.55÷2.5

=33.02-23.02

=10

(1÷1-1)÷5.1

=(1-1)÷5.1

=0÷5.1

=0

18.1+(3-0.299÷0.23)×1

=18.1+1.7×1

=18.1+1.7

=19.8

3.42×5.7+4.3×3.42 8.75×11-8.75 7.42×20.1

5.9×2.7+0.59×73 0.358×14.7+35.8×0.853

2.7×3.014 0.847×35 0.079×0.23300÷125÷8

=300÷(125×8)

=300÷1000

=0.3

396-96-172-28

=(396-96)-(172+28)

= 300-200

= 100

12524

= 12583

= 10003

= 3000

2615

= (20+6)15

= 2015 + 615

= 300+90

=390

25994

= 25499

= 10099

= 9900

32

= 48

= 10008

= 8000

(98+98+98+98)25

= 49825

= 42598

= 10098

= 9800

0.4×125×25×0.8

=(0.4×25)×(125×0.8)

=10×100=1000

1.25×(8+10)

=1.25×8+1.25×10

=10+12.5=22.5

23-(123+8.8)

=23-123-8.8

=9000-8.8

=89.2

1.24×8.3+8.3×1.76

=8.3×(1.24+1.76)

=8.3×3=24.9

9999×1001

=9999×(1000+1)

=9999×1000+9999×1

=10008999

14.8×6.3-6.3×6.5+8.3×3.7

=(14.8-6.5)×6.3+8.3×3.7

=8.3×6.3+8.3×3.7

8.3×(6.3+3.7)

=8.3×10

=83

1.24+0.78+8.76

=(1.24+8.76)+0.78

=10+0.78

=10.78

933-157-43

=933-(157+43)

=933-200

=733

4821-998

=4821-1000+2

=3823

I32×125×25

=4×8×125×25

=(4×25)×(8×125)

=100×1000

=100000

9048÷268

=(2600+2600+2600+1248)÷26

=2600÷26+2600÷26+2600÷26+1248÷269

=100+100+100+48

=348

2881÷ 43

=(1290+15)÷ 434

=1290÷43+15÷43

=30+37

3.2×42.3×3.75-12.5×0.423×16

=3.2×42.3×3.75-1.25×42.3×1.6

=42.3×(3.2×3.75-1.25×1.6)

=42.3×(4×0.8×3.75-1.25×4×0.4)

=42.3×(4×0.4×2×3.75-1.25×4×0.4)

=42.3×(4x0.4x7.5-1.25x4x0.4)

=42.3×[4×0.4×(7.5-1.25)]

=42.3×[4×0.4×6.25]

=42.3×(4×2.5)

=4237

1.8+18÷1.5-0.5×0.3

=1.8+12-0.15

=13.8-0.15

=13.65

6.5×8+3.5×8-47

=52+28-47

=80-47

(80-9.8)×5分之2-1.32

=70.2X2/5-1.32

=28.08-1.32

=26.76

8×7分之4÷[1÷(3.2-2.95)]

=8×4/7÷[1÷0.25]

=8×4/7÷4

=8/7

2700×(506-499)÷900

=2700×7÷900

=18900÷900

=21

33.02-(148.4-90.85)÷2.5

=33.02-57.55÷2.5

=33.02-23.02

=10

(1÷1-1)÷5.1

=(1-1)÷5.1

=0÷5.1

=0

18.1+(3-0.299÷0.23)×1

=18.1+1.7×1

=18.1+1.7

=19.8

3.42×5.7+4.3×3.42 8.75×11-8.75 7.42×20.1

5.9×2.7+0.59×73 0.358×14.7+35.8×0.853

2.7×3.014 0.847×35 0.079×0.23300÷125÷8

=300÷(125×8)

=300÷1000

=0.3

396-96-172-28

=(396-96)-(172+28)

= 300-200

= 100

12524

= 12583

= 10003

= 3000

2615

= (20+6)15

= 2015 + 615

= 300+90

=390

25994

= 25499

= 10099

= 9900

32

= 48

= 10008

= 8000

(98+98+98+98)25

= 49825

= 42598

= 10098

= 9800

0.4×125×25×0.8

=(0.4×25)×(125×0.8)

=10×100=1000

1.25×(8+10)

=1.25×8+1.25×10

=10+12.5=22.5

23-(123+8.8)

=23-123-8.8

=9000-8.8

=89.2

1.24×8.3+8.3×1.76

=8.3×(1.24+1.76)

=8.3×3=24.9

9999×1001

=9999×(1000+1)

=9999×1000+9999×1

=10008999

14.8×6.3-6.3×6.5+8.3×3.7

=(14.8-6.5)×6.3+8.3×3.7

=8.3×6.3+8.3×3.7

8.3×(6.3+3.7)

=8.3×10

=83

1.24+0.78+8.76

=(1.24+8.76)+0.78

=10+0.78

=10.78

933-157-43

=933-(157+43)

=933-200

=733

4821-998

=4821-1000+2

=3823

I32×125×25

=4×8×125×25

=(4×25)×(8×125)

=100×1000

=100000

9048÷268

=(2600+2600+2600+1248)÷26

=2600÷26+2600÷26+2600÷26+1248÷269

=100+100+100+48

=348

2881÷ 43

=(1290+15)÷ 434

=1290÷43+15÷43

=30+37

3.2×42.3×3.75-12.5×0.423×16

=3.2×42.3×3.75-1.25×42.3×1.6

=42.3×(3.2×3.75-1.25×1.6)

=42.3×(4×0.8×3.75-1.25×4×0.4)

=42.3×(4×0.4×2×3.75-1.25×4×0.4)

=42.3×(4x0.4x7.5-1.25x4x0.4)

=42.3×[4×0.4×(7.5-1.25)]

=42.3×[4×0.4×6.25]

=42.3×(4×2.5)

=4237

1.8+18÷1.5-0.5×0.3

=1.8+12-0.15

=13.8-0.15

=13.65

6.5×8+3.5×8-47

=52+28-47

=80-47

(80-9.8)×5分之2-1.32

=70.2X2/5-1.32

=28.08-1.32

=26.76

8×7分之4÷[1÷(3.2-2.95)]

=8×4/7÷[1÷0.25]

=8×4/7÷4

=8/7

2700×(506-499)÷900

=2700×7÷900

=18900÷900

=21

33.02-(148.4-90.85)÷2.5

=33.02-57.55÷2.5

=33.02-23.02

=10

(1÷1-1)÷5.1

=(1-1)÷5.1

=0÷5.1

=0

18.1+(3-0.299÷0.23)×1

=18.1+1.7×1

=18.1+1.7

=19.8

3.42×5.7+4.3×3.42 8.75×11-8.75 7.42×20.1

5.9×2.7+0.59×73 0.358×14.7+35.8×0.853

2.7×3.014 0.847×35 0.079×0.23300÷125÷8

=300÷(125×8)

=300÷1000

=0.3

396-96-172-28

=(396-96)-(172+28)

= 300-200

= 100

12524

= 12583

= 10003

= 3000

2615

= (20+6)15

= 2015 + 615

= 300+90

=390

25994

= 25499

= 10099

= 9900

32

= 48

= 10008

= 8000

(98+98+98+98)25

= 49825

= 42598

= 10098

= 9800

34×3.535-3.5×34.34

=34×3.5×1.01-3.5×34×1.01

=0

8+89+899+8999+89999

=9+90+900+9000+90000-5

=99999-5

=99994

0.67×2.1+0.018×21+8.5×0.79

=0.67×2.1+0.18×2.1+8.5×0.79

=(0.67+0.18)×2.1+8.5×0.79

=0.85×2.1+0.85×7.9

=0.85×(2.1+7.9)

=0.85×10

=8.5

22222.2×9.99999

=22222.2×(10-0.00001)

=222222-0.222222

=222221.777778

1997×19961996-1996×19971997

=1997×1996×10001-1996×1997×10001

=0

0.02+0.04+0.06+0.08+……+19.94+19.96+19.98

=(0.02+19.98)×999÷2

=10×999

=9990

99999×77778+33333×66666

=99999×77778+99999×22222

=99999×(77778+22222)

=99999×100000

=9999900000

(4又5/6-3又3/4)/(3/14+2/7)

=13/12÷1/2

=13/6

=2又1/6

(4.8/1又4/5+3又1/2+7又1/3)4/9

=(2又2/3+7又1/3+3.5)4/9

=(10+3.5)4/9

=13.54/9

=6

17.2/【(3又2/5-1.25)2/3】

=17.2/【2.152/3】

=17.2÷43/3

=1.2

55又1/5

=55+51/5

=25+1

=26

(5又2/5-1.8)/[(1.15+13/20)1又2/3]

=3.6/[1.85/3]

=3.6/3

=1.2

3又5/85又1/5+5又1/56又3/8

=5.2(3又5/8+6又3/8)

=5.210

=52

[3/4-7/8/(5/6+4/5)]28

=[3/4-7/8÷49/30]28

=[3/4-15/28]28

=3/428-15/2828

=21-15

=6

(1.254/5-0.76)/(1又3/8+1又1/40)

=(1-0.76)/2.4

=0.24/2.4

=0.1

[(0.2+1/3)4.5]/(8又1/20-6.45)

=8/154.5/1.6

=2.4/1.6

=1.5

x+3又2/3=5

x9又3/4=7又1/11 x/2/5=10

6又2/3-x=4.25 6.41.7+6又2/58.3

(4又6/7+1.75)/1又11/14+3又5/6

2.16-7x=0.06

1/2x-0.5=5又1/2

8.16-1.26/0.31.5

=8.16-4.21.5

=8.16-6.3

=1.86

8.4[(1.2+3又1/3)/3.4-1/2]

=8.4[68/16/3.4-1/2]

=8.4[5/4-1/2]

=8.43/4

=6.3

5.8:x=3又1/2:7

3.5x=75.8

x=7/3.55.8

x=25.8

x=11.6

3/1055-4x=14.5

16.5-4x=14.5

4x=2

x=0.2

19.38-4又7/8-5又1/8

=1.938-(4又7/8+5又1/8)

=19.38-10

=9.38

13又7/13-(6又3/5+3又7/13)

=13又7/13-3又7/13-6又3/5

=10-6又3/5

=3.4

1又3/4+[2又3/14-(2又3/14-1.875)]/2又1/12

=1又3/4-15/812/25

=1又3/4-9/10

=0.85

(9.4-8又2/5)/[(1.1+1/15)1又7/18]

=1/[7/625/18]

=1÷175/108

=108/17532×125×25

=4×8×125×25

=(4×25)×(8×125)

=100×1000

=100000 9048÷26

=(2600+2600+2600+1248)÷26

=2600÷26+2600÷26+2600÷26+1248÷26

=100+100+100+48

=348

2881÷ 43

=(1290+15)÷ 43

=1290÷43+15÷43

=30+37 =67 3.2×42.3×3.75-12.5×0.423×16

=3.2×42.3×3.75-1.25×42.3×1.6

=42.3×(3.2×3.75-1.25×1.6)

=42.3×(4×0.8×3.75-1.25×4×0.4)

=42.3×(4×0.4×2×3.75-1.25×4×0.4)

=42.3×(4x0.4x7.5-1.25x4x0.4)

=42.3×[4×0.4×(7.5-1.25)]

=42.3×[4×0.4×6.25]

=42.3×(4×2.5)

=423

1.8+18÷1.5-0.5×0.3

=1.8+12-0.15

=13.8-0.15

=13.65

6.5×8+3.5×8-47

=52+28-47 =80-47 =33 (80-9.8)×5分之2-1.32

=70.2X2/5-1.32

=28.08-1.32

=26.76

8×7分之4÷[1÷(3.2-2.95)]

=8×4/7÷[1÷0.25]

=8×4/7÷4

=8/7

2700×(506-499)÷900

=2700×7÷900

=18900÷900

=21

33.02-(148.4-90.85)÷2.5

=33.02-57.55÷2.5

=33.02-23.02

=10

(1÷1-1)÷5.1

=(1-1)÷5.1

=0÷5.1

=0

18.1+(3-0.299÷0.23)×1

=18.1+1.7×1

=18.1+1.7

=19.8 祝学习进步!!!

0.4×125×25×0.8

=(0.4×25)×(125×0.8)

=10×100=1000

1.25×(8+10)

=1.25×8+1.25×10

=10+12.5=22.5

23-(123+8.8)

=23-123-8.8

=9000-8.8

=89.2

1.24×8.3+8.3×1.76

=8.3×(1.24+1.76)

=8.3×3=24.9

9999×1001

=9999×(1000+1)

=9999×1000+9999×1

=10008999

14.8×6.3-6.3×6.5+8.3×3.7

=(14.8-6.5)×6.3+8.3×3.7

=8.3×6.3+8.3×3.7

8.3×(6.3+3.7)

=8.3×10

=83

1.24+0.78+8.76

=(1.24+8.76)+0.78

=10+0.78

=10.78

933-157-43

=933-(157+43)

=933-200

=733

4821-998

=4821-1000+2

=3823

I32×125×25

=4×8×125×25

=(4×25)×(8×125)

=100×1000

=100000

9048÷268

=(2600+2600+2600+1248)÷26

=2600÷26+2600÷26+2600÷26+1248÷269

=100+100+100+48

=348

2881÷ 43

=(1290+15)÷ 434

=1290÷43+15÷43

=30+37

3.2×42.3×3.75-12.5×0.423×16

=3.2×42.3×3.75-1.25×42.3×1.6

=42.3×(3.2×3.75-1.25×1.6)

=42.3×(4×0.8×3.75-1.25×4×0.4)

=42.3×(4×0.4×2×3.75-1.25×4×0.4)

=42.3×(4x0.4x7.5-1.25x4x0.4)

=42.3×[4×0.4×(7.5-1.25)]

=42.3×[4×0.4×6.25]

=42.3×(4×2.5)

=4237

1.8+18÷1.5-0.5×0.3

=1.8+12-0.15

=13.8-0.15

=13.65

6.5×8+3.5×8-47

=52+28-47

=80-47

(80-9.8)×5分之2-1.32

=70.2X2/5-1.32

=28.08-1.32

=26.76

8×7分之4÷[1÷(3.2-2.95)]

=8×4/7÷[1÷0.25]

=8×4/7÷4

=8/7

2700×(506-499)÷900

=2700×7÷900

=18900÷900

=21

33.02-(148.4-90.85)÷2.5

=33.02-57.55÷2.5

=33.02-23.02

=10

(1÷1-1)÷5.1

=(1-1)÷5.1

=0÷5.1

=0

18.1+(3-0.299÷0.23)×1

=18.1+1.7×1

=18.1+1.7

=19.8

3.42×5.7+4.3×3.42 8.75×11-8.75 7.42×20.1

5.9×2.7+0.59×73 0.358×14.7+35.8×0.853

2.7×3.014 0.847×35 0.079×0.23

0.4×125×25×0.8

=(0.4×25)×(125×0.8)

=10×100=1000

1.25×(8+10)

=1.25×8+1.25×10

=10+12.5=22.5

23-(123+8.8)

=23-123-8.8

=9000-8.8

=89.2

1.24×8.3+8.3×1.76

=8.3×(1.24+1.76)

=8.3×3=24.9

9999×1001

=9999×(1000+1)

=9999×1000+9999×1

=10008999

14.8×6.3-6.3×6.5+8.3×3.7

=(14.8-6.5)×6.3+8.3×3.7

=8.3×6.3+8.3×3.7

8.3×(6.3+3.7)

=8.3×10

=83

1.24+0.78+8.76

=(1.24+8.76)+0.78

=10+0.78

=10.78

933-157-43

=933-(157+43)

=933-200

=733

4821-998

=4821-1000+2

=3823

I32×125×25

=4×8×125×25

=(4×25)×(8×125)

=100×1000

=100000

9048÷268

=(2600+2600+2600+1248)÷26

=2600÷26+2600÷26+2600÷26+1248÷269

=100+100+100+48

=348

2881÷ 43

=(1290+15)÷ 434

=1290÷43+15÷43

=30+37

3.2×42.3×3.75-12.5×0.423×16

=3.2×42.3×3.75-1.25×42.3×1.6

=42.3×(3.2×3.75-1.25×1.6)

=42.3×(4×0.8×3.75-1.25×4×0.4)

=42.3×(4×0.4×2×3.75-1.25×4×0.4)

=42.3×(4x0.4x7.5-1.25x4x0.4)

=42.3×[4×0.4×(7.5-1.25)]

=42.3×[4×0.4×6.25]

=42.3×(4×2.5)

=4237

1.8+18÷1.5-0.5×0.3

=1.8+12-0.15

=13.8-0.15

=13.65

6.5×8+3.5×8-47

=52+28-47

=80-47

(80-9.8)×5分之2-1.32

=70.2X2/5-1.32

=28.08-1.32

=26.76

8×7分之4÷[1÷(3.2-2.95)]

=8×4/7÷[1÷0.25]

=8×4/7÷4

=8/7

2700×(506-499)÷900

=2700×7÷900

=18900÷900

=21

33.02-(148.4-90.85)÷2.5

=33.02-57.55÷2.5

=33.02-23.02

=10

(1÷1-1)÷5.1

=(1-1)÷5.1

=0÷5.1

=0

18.1+(3-0.299÷0.23)×1

=18.1+1.7×1

=18.1+1.7

=19.8

3.42×5.7+4.3×3.42 8.75×11-8.75 7.42×20.1

5.9×2.7+0.59×73 0.358×14.7+35.8×0.853

2.7×3.014 0.847×35 0.079×0.23

28×21.6-2.8×16=28×(21.6-1.6)=28x20=560 1.25x(8+10)=1.25x8+1.25x10=22.5

300÷125÷8

=300÷(125×8)

=300÷1000

=0.3

396-96-172-28

=(396-96)-(172+28)

= 300-200

= 100

12524

= 12583

= 10003

= 3000

2615

= (20+6)15

= 2015 + 615

= 300+90

=390

25994

= 25499

= 10099

= 9900

32

= 48

= 10008

= 8000

(98+98+98+98)25

= 49825

= 42598

= 10098

= 9800

小学五年级数学简便计算题

9405-2940÷28×21

920-1680÷40÷7

690+47×52-398

148+3328÷64-75

360×24÷32+730

2100-94+48×54

51+(2304-2042)×23

4215+(4361-716)÷81

(247+18)×27÷25

36-720÷(360÷18)

1080÷(63-54)×80

(528+2)×5-6178

8528÷41×38-904

264+318-8280÷69

(174+209)×26- 9000

814-(278+322)÷15

1406+735×9÷45

3168-7828÷38+504

796-5040÷(630÷7)

285+(3000-372)÷36

1+5/6-19/12

3x(-9)+7x(-9

(-54)x1/6x(-1/3)

1.18.1+(3-0.299÷0.23)×1

2.(6.8-6.8×0.55)÷8.5

3.0.12× 4.8÷0.12×4.8

4.(3.2×1.5+2.5)÷1.6 (2)3.2×(1.5+2.5)÷1.6

5.6-1.6÷4= 5.38+7.85-5.37=

6.7.2÷0.8-1.2×5= 6-1.19×3-0.43=

7.6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9

8.10.15-10.75×0.4-5.7

9.5.8×(3.87-0.13)+4.2×3.74

10.32.52-(6+9.728÷3.2)×2.5

11.[(7.1-5.6)×0.9-1.15] ÷2.5

12.5.4÷[2.6×(3.7-2.9)+0.62]

13.12×6÷(12-7.2)-6

14.12×6÷7.2-6

15.33.02-(148.4-90.85)÷2.5

7×(5/21+9/714)

5699+56

3297+96

545+22546=23456

小学数学简便计算公式大全

1、带符号搬家法:当一个计算题只有同一级运算(只有乘除或只有加减运算)又没有括号时,我们可以“带符号搬家”。

2、结合律法

(1)加括号法

在加减运算中添括号时,括号前是加号,括号里不变号,括号前是减号,括号里要变号。

在乘除运算中添括号时,括号前是乘号,括号里不变号,括号前是除号,括号里要变号。

(2)去括号法

在加减运算中去括号时,括号前是加号,去掉括号不变号,括号前是减号,去掉括号要变号(原来括号里的加,现在要变为减;原来是减,现在就要变为加)。

在乘除运算中去括号时,括号前是乘号,去掉括号不变号,括号前是除号,去掉括号要变号(原来括号里的乘,现在就要变为除;原来是除,现在就要变为乘)。

3、乘法分配律法

分配法:括号里是加或减运算,与另一个数相乘,注意分配。

提取公因式:注意相同因数的提取。

注意构造,让算式满足乘法分配律的条件。

4、凑整法:看到名字,就知道这个方法的含义。用此方法时,需要注意观察,发现规律。还要注意还哦 ,有借有还,再借不难。

5、拆分法:拆分法就是为了方便计算把一个数拆成几个数。这需要掌握一些“”,如:2和5,4和5,4和25,8和125等。分拆还要注意不要改变数的大小。

望采纳,谢谢!

小学数学题:用简便方法计算 1+2-3+4+5-6+7+8-9+......+97+98-99=

仔细观察题目发现:

(1)1+2-3 = 0; 4+5-6 = 3; 7+8-9 = 6; ………… 97+98-99= 96。

(2)这样就变成了一组等数列啦。即,0、3、6、9、……93、96。(共99÷3=33个数)

(3)用求和公式“(首项+末项)×项数÷2=总和”进行计算即可。

(4)算式是:

1+2-3+4+5-6+7+8-9+......+97+98-99

=(1+2-3)+(4+5-6)+...+(97+98-99)

=0+3+6+...+96

=(0+96)×33÷2

=1584

这个简单 2-3是负1 5-6 是负1 这样算下来就是33个负1 也就是负33.接下来是一个数列问题。1,4,7,10,13,。。。。。,94,97.相加就行了。1+97=98.4+94=98.。。。。这样有32组也就是98x32=3136.这样还剩下一个中间数54.这样 3136+54-33=3157

有题目已发现带有“—”的数字都是3的倍数所以得有99/3=33个带“—”号的数而且除去 —99不看

—3+(—96)=-99 —6+(—93)=—99……

所以这样的数有(33—1)/2=16对 也就是(—96)

99个数减去带有“—”的数字的个数剩下99-33=66个 又因为1+98=99,2+97=99……

可以加的99所以这样的数有66/2=33对 也就是9933所以

1+2-3+4+5-6+7+8-9+......+97+98-99

=(—96)+9933-99

=(—1)96+9933-99

=—1699+3399-99

=(—16+33-1)99

=1699

=16(100-1)

=1600-16

=1584

1+2-3+4+5-6+7+8-9+......+97+98-99=1+2+3+.....+98+99-2(3+6+9+......+99)=(1+99)+(2+98)+......+(49+51)+50-23(1+2+3+....33)=4950-6(3416+17)=4950-3366=1584

1+2-3+4+5-6+7+8-9……+97+98-99

=(1+2-3)+(4+5-6)+...+(97+98-99)

=0+3+6+...+96

=(0+96)33/2

=1584

小学数学简算计算题

(1)284+(5+716)

(2)153+178+122+547

(3)(141+229)+(371+659+1048)

(4)926-348-152

(5)1584-627-373+416

(6)1276-(276+339)

(7)4628-(1628-794)

(8)526+498

(9)803+488

(10)938-299

(11)836-402

(12)635+327+125+(363+240)

(13)9999+999+99+9+6

(14)32+34+36+38+40+42+44+46+48

(15)(1347-258)-(347+742)

(16)3560-(474-440)-526

(17)12345+23451+34512+45123+51234

(18)5+10+15+20+…+95

(19)5+6+7+8+…+103+104

(20)(2+4+6+…+100)-(1+3+5+…+99)

四年级数学简便运

(1)(78+61)+39

(2)700-82-18

(3)348+163+242+410+537

(4)125×47-47×25

(5)201×316

(6)374-205+226-95

(7)3000-999

(8)997×7+21

(9)87×470+870×53

(10)(55+55+55+55×5)×125

(11)125×(8+40)×25

(12)99+49×99

(13)264×97+4×264

(14)454+999×999+545

(15)9999×36+6666×3×32

(16)124×38+65×124+76×110-76×7

(17)62×4+44×5+5×18

(18)3400-62×34-38×20-38×14

(19)1992×1919-19×19901990

(20(2+4+6+……+100)-(1+3+5+……+99)

小数简便运算练习

4.8+8.63+5.2+0.37

5.93+0.19+2.81

1.76+0.195+3.24

2.35+1.713+0.287+7.65

1.57+0.245+7.43

6.02+3.6+1.98

0.134+2.66+0.866

1.27+3.9+0.73+16.1

7.5+4.9-6.5

3.07-0.38-1.62

1.29+3.7+2.71+6.3

8-2.45-1.55

3.25+1.79-0.59+1.75

23.4-0.8-13.4-7.2

0.32×403

3.2+0.36+4.8+1.64

1.23+3.4-0.23+6.6

0.25×36

12.7-(3.7+0.84)

36.54-1.76-4.54

0.25×0.73×4

7.6×0.8+0.2×7.6

0.85×199

0.25×8.5×4

1.28×8.6+0.72×8.6

12.5×0.96×0.8

10.4-9.6×0.35

0.8×(4.3×1.25)

3.12+3.12×99

28.6×101-28.6

(4.23+6.17)×0.8

0.86×15.7-0.86×14.7

2.4×102

14-7.32-2.68

2.64+8.67+7.36+11.33

2.31×1.2×0.5

(2.5-0.25)×0.4

9.16×1.5-0.5×9.16

3.6-3.6×0.5

4.5÷1.8

4.2÷3.5

930÷0.6÷5

63.4÷2.5÷0.4

4.9÷1.4

3.9÷(1.3×5)

(7.7+1.54)÷0.7

2.5×2.4

2.7÷45

0.35×1.25×2×0.8

32.4×0.9+0.1×32.4

15÷0.25

70÷28

15÷(0.15×0.4)

4.25÷2.5×9.9+0.17

三年级数学简便运算

(1)284+(5+716)

(2)153+178+122+547

(3)(141+229)+(371+659+1048)

(4)926-348-152

(5)1584-627-373+416

(6)1276-(276+339)

(7)4628-(1628-794)

(8)526+498

(9)803+488

(10)938-299

(11)836-402

(12)635+327+125+(363+240)

(13)9999+999+99+9+6

(14)32+34+36+38+40+42+44+46+48

(15)(1347-258)-(347+742)

(16)3560-(474-440)-526

(17)12345+23451+34512+45123+51234

(18)5+10+15+20+…+95

(19)5+6+7+8+…+103+104

(20)(2+4+6+…+100)-(1+3+5+…+99)

四年级数学简便运

(1)(78+61)+39

(2)700-82-18

(3)348+163+242+410+537

(4)125×47-47×25

(5)201×316

(6)374-205+226-95

(7)3000-999

(8)997×7+21

(9)87×470+870×53

(10)(55+55+55+55×5)×125

(11)125×(8+40)×25

(12)99+49×99

(13)264×97+4×264

(14)454+999×999+545

(15)9999×36+6666×3×32

(16)124×38+65×124+76×110-76×7

(17)62×4+44×5+5×18

(18)3400-62×34-38×20-38×14

(19)1992×1919-19×19901990

(20(2+4+6+……+100)-(1+3+5+……+99)

小数简便运算练习

4.8+8.63+5.2+0.37

5.93+0.19+2.81

1.76+0.195+3.24

2.35+1.713+0.287+7.65

1.57+0.245+7.43

6.02+3.6+1.98

0.134+2.66+0.866

1.27+3.9+0.73+16.1

7.5+4.9-6.5

3.07-0.38-1.62

1.29+3.7+2.71+6.3

8-2.45-1.55

3.25+1.79-0.59+1.75

23.4-0.8-13.4-7.2

0.32×403

3.2+0.36+4.8+1.64

1.23+3.4-0.23+6.6

0.25×36

12.7-(3.7+0.84)

36.54-1.76-4.54

0.25×0.73×4

7.6×0.8+0.2×7.6

0.85×199

0.25×8.5×4

1.28×8.6+0.72×8.6

12.5×0.96×0.8

10.4-9.6×0.35

0.8×(4.3×1.25)

3.12+3.12×99

28.6×101-28.6

(4.23+6.17)×0.8

0.86×15.7-0.86×14.7

2.4×102

14-7.32-2.68

2.64+8.67+7.36+11.33

2.31×1.2×0.5

(2.5-0.25)×0.4

9.16×1.5-0.5×9.16

3.6-3.6×0.5

4.5÷1.8

4.2÷3.5

930÷0.6÷5

63.4÷2.5÷0.4

4.9÷1.4

3.9÷(1.3×5)

(7.7+1.54)÷0.7

2.5×2.4

2.7÷45

0.35×1.25×2×0.8

32.4×0.9+0.1×32.4

15÷0.25

70÷28

15÷(0.15×0.4)

4.25÷2.5×9.9+0.17

0.86×15.7-0.86×14.7

2.64+8.67+7.36+11.33

(4.23+6.17)×0.8

0.86×15.7-0.86×14.7

9999×36+6666×3×32

9.16×1.5-0.5×9.16

(7.7+1.54)÷0.7

9999×36+6666×3×32

12345+23451+34512+45123+51234

32.4×0.9+0.1×32.4

(2/3+2/12)24 (7/8+9/5)22

(3/3+3/3)23 (6/5+3/2)21

(9/8+7/6)20 (9/5+6/7)19

(6/3+2/5)18 (8/7+5/3)17

(3/6+9/8)16 (4/5+3/6)15