12.5×9.7-12.5×8.7 0.125×0.25×8×4 2.73×99 7.6+7.6×
来源:学生作业帮 编辑:百度作业网作业帮 分类:数学作业 时间:2024/08/15 11:05:21
12.5×9.7-12.5×8.7 0.125×0.25×8×4 2.73×99 7.6+7.6×
12.5×9.7-12.5×8.7
0.125×0.25×8×4
2.73×99
7.6+7.6×9
用简便计算
12.5×9.7-12.5×8.7
0.125×0.25×8×4
2.73×99
7.6+7.6×9
用简便计算
![12.5×9.7-12.5×8.7 0.125×0.25×8×4 2.73×99 7.6+7.6×](/uploads/image/z/18141821-53-1.jpg?t=12.5%C3%979.7-12.5%C3%978.7+0.125%C3%970.25%C3%978%C3%974+2.73%C3%9799+7.6%2B7.6%C3%97)
12.5×9.7-12.5×8.7
=12.5×(9.7-8.7)
=12.5
再问: 还有呢?
再答: 0.125×0.25×8×4
=(0.125×8)×(0.25×4)
=1×1
=1
再答: 2.73×99
=2.73×(100-1)
=273-2.73
=270.27
再答: 7.6+7.6×9
=7.6×(10-1)
=76-7.6
=68.4
=12.5×(9.7-8.7)
=12.5
再问: 还有呢?
再答: 0.125×0.25×8×4
=(0.125×8)×(0.25×4)
=1×1
=1
再答: 2.73×99
=2.73×(100-1)
=273-2.73
=270.27
再答: 7.6+7.6×9
=7.6×(10-1)
=76-7.6
=68.4
0.125*4分之3+2分之1*0.25+12.5%简便
99*7.56+7.56 2.5*3.2 *1.25 【0.125+1.25+12.5】*8
1.25*2.3*0.8 2.4*1.8*7.6*1.8 3.2*0.25*4 32*0.125*2.5 求简算,
(12.5+0.125)×8 简便计算
7.6×(12.5-8.5÷0.85)简便计算
3x-4*6.5=7.6 12.5x+x=108 3(x-2.1)=8.4 12*6+8x=120 解方程
1/8×2.75+0.125×4/1/4+12.5%
0.125×3/4+1/8×8.25+12.5% 怎么简算?
8分之7乘4分之1加0.25乘0.125 15分之2乘【12.6减(5分之33加0.125除以12.5%)】 简便运算
7.6*0.8+0..2*7.6.0.25*36 0.85*99 用简便方法计算
12.5×4-0.8×0.25 求巧算
36×2.5;(12.5+0.25)×8;0.125×7.2;401×0.32简便计算