8.7乘以9.9在乘以8.7简便运算
问题描述:
8.7乘以9.9在乘以8.7简便运算
答
8.7x9.9x8.7
(9-0.3)x(10-0.1)x(9-0.3)
= 749.331
谢谢我可以帮到你!