急求50道递等式题目及运算方法(要简便运算的)
2个回答
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125×32
=125×(30+2)
=30×125+2×125
=3750+250
=4000
算法也就是这种了 把一个数拆分成多个数 方便计算
52×11111+88888×6
=52×11111+(8×11111)×6
=(52+8×6)×11111
=100×11111
=1111100
12÷0.125
=12×(8×0.125)÷0.125
=12×8×0.125÷0.125
=12×8
=96
32×1.24+476×0.32
=32×1.24+(476÷100)×(0.32×100)
=32×1.24+4.76×32
=(1.24+4.76)×32
=6×32
=192
200.5%+2.005*490+0.2005*5000
=2.005+2.005×490+2.005×500
=2.005×(10+490+500)
=2.005×1000
=2005
3333*3333+9999*8889
=3333×(3333+3×8889)
=9999×(1111+8889)
=9999×10000
=99990000
8.64-8.64÷2.7+9.1
=8.64-(8.64÷2.7)+9.1
=8.64-3.2+9.1
=14.54
3.83×(3.83-2.3)+1.5
=3.83×1.53+1.5
=7.3599
31.50+160÷40 (58+370)÷(64-45)
32.120-144÷18+35
33.347+45×2-4160÷52
34(58+37)÷(64-9×5)
35.95÷(64-45)
36.178-145÷5×6+42 420+580-64×21÷28
37.812-700÷(9+31×11) (136+64)×(65-345÷23)
38.85+14×(14+208÷26)
39.(284+16)×(512-8208÷18)
40.120-36×4÷18+35
41.(58+37)÷(64-9×5)
42.(6.8-6.8×0.55)÷8.5
43.0.12× 4.8÷0.12×4.8
44.(3.2×1.5+2.5)÷1.6 (2)3.2×(1.5+2.5)÷1.6
45.6-1.6÷4= 5.38+7.85-5.37=
46.7.2÷0.8-1.2×5= 6-1.19×3-0.43=
47.6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9
48.10.15-10.75×0.4-5.7
49.5.8×(3.87-0.13)+4.2×3.74
50.32.52-(6+9.728÷3.2)×2.5
只能在网上找了 必须要答案吗?累~
=125×(30+2)
=30×125+2×125
=3750+250
=4000
算法也就是这种了 把一个数拆分成多个数 方便计算
52×11111+88888×6
=52×11111+(8×11111)×6
=(52+8×6)×11111
=100×11111
=1111100
12÷0.125
=12×(8×0.125)÷0.125
=12×8×0.125÷0.125
=12×8
=96
32×1.24+476×0.32
=32×1.24+(476÷100)×(0.32×100)
=32×1.24+4.76×32
=(1.24+4.76)×32
=6×32
=192
200.5%+2.005*490+0.2005*5000
=2.005+2.005×490+2.005×500
=2.005×(10+490+500)
=2.005×1000
=2005
3333*3333+9999*8889
=3333×(3333+3×8889)
=9999×(1111+8889)
=9999×10000
=99990000
8.64-8.64÷2.7+9.1
=8.64-(8.64÷2.7)+9.1
=8.64-3.2+9.1
=14.54
3.83×(3.83-2.3)+1.5
=3.83×1.53+1.5
=7.3599
31.50+160÷40 (58+370)÷(64-45)
32.120-144÷18+35
33.347+45×2-4160÷52
34(58+37)÷(64-9×5)
35.95÷(64-45)
36.178-145÷5×6+42 420+580-64×21÷28
37.812-700÷(9+31×11) (136+64)×(65-345÷23)
38.85+14×(14+208÷26)
39.(284+16)×(512-8208÷18)
40.120-36×4÷18+35
41.(58+37)÷(64-9×5)
42.(6.8-6.8×0.55)÷8.5
43.0.12× 4.8÷0.12×4.8
44.(3.2×1.5+2.5)÷1.6 (2)3.2×(1.5+2.5)÷1.6
45.6-1.6÷4= 5.38+7.85-5.37=
46.7.2÷0.8-1.2×5= 6-1.19×3-0.43=
47.6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9
48.10.15-10.75×0.4-5.7
49.5.8×(3.87-0.13)+4.2×3.74
50.32.52-(6+9.728÷3.2)×2.5
只能在网上找了 必须要答案吗?累~
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