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
= 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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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
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