Question

12.5×4×0.25×0.8运用什么运算定律可以简便?

Answer 1

交换律，计算如下
12.5×4×0.25×0.8
=12.5x0.8x4x0.25
=10x1
=10

Answer 2

12.5×4×0.25×0.5
=（12.5×0.8）×（4×0.25）
=10×1
=10

Answer 3

• 交换律

Answer 4

分配律