9.1÷0.125如何巧算
问题描述:
9.1÷0.125如何巧算
答
9.1 ÷ 0.125
=(9.1 × 8)÷(0.125 × 8)(被除数除数扩大相同的倍数商不变)
= 72.8 ÷ 1
= 72.8