小数简便运算练习题46.8—8.12+3.2-11.88
问题描述:
小数简便运算练习题46.8—8.12+3.2-11.88
答
46.8—8.12+3.2-11.88
=(46.8+3.2)-(8.12+11.88)
=50-20
=30