12.5×0.4×2.5×8的简便运算
问题描述:
12.5×0.4×2.5×8的简便运算
答
12.5×0.4×2.5×8
=(12.5x8)x(0.4x2.5)
=100x1
=100
答
12.5 X 8 X (2.5 X 0.4)=100 X 1 =100
答
12.5×0.4×2.5×8
= (12.5×8)×(0.4×2.5)
=100×1
=100