0.88×98+4.4×0.4 简便运算
问题描述：
0.88×98+4.4×0.4 简便运算
答
0.88×98+4.4×0.4 =0.88×98+0.44×4
= 0.88×98+0.88×2
=0.88×(98+2)
=0.88×100
=88