Question

7.6*3.1-31*0.76用简便方法？

Answer 1

首先要观察这道算式，将31转换成3.1×10，这样计算起来会更加简便。详细的计算过程如下
7.6×3.1-31×0.76
=7.6×3.1-3.1×10×0.76
=7.6×3.1-3.1×7.6
=0

Answer 2

你好，7.6×3.1-31×0.76可以写成：7.6×3.1-3.1×7.6=(3.1-3.1)×7.6=0

Answer 3

7.6×3.1-31×0.76
=0.76×10×3.1-31×0.76
=0.76×（31-31)
=0.76×0
=0

Answer 4

31*0.76，将31除以10，将0.76乘以10，就是3.1*7.6，跟前面的7.6*3.1相同，也就是说两个数相减等于0

Answer 5

7.6×3.1-31×0.76用简便方法
7.6×3.1-31×0.76
=7.6×3.1-31×0.1×7.6
=7.6×3.1-3.1×7.6
=7.6×（3.1-3.1）
=7.6×0
=0