5个0.2用运算符号组合分别等于0. 1 . 2 . 3
问题描述:
5个0.2用运算符号组合分别等于0. 1 . 2 . 3
答
(0.2-0.2)÷0.2×0.2×0.2=0
(0.2+0.2)÷0.2-0.2÷0.2=1
(0.2+0.2)÷0.2-(0.2-0.2)=2
(0.2+0.2)÷0.2+0.2÷0.2=3