在下面各题的等号左边添上合适的预算符号和括号,使计算结果正好等于右边的数.3()3()3()3= 5 3()3()3()3= 63()3()3()3= 7 3()3()3()3=83()3()3()3= 23()3()3()3= 4
问题描述:
在下面各题的等号左边添上合适的预算符号和括号,使计算结果正好等于右边的数.
3()3()3()3= 5 3()3()3()3= 6
3()3()3()3= 7 3()3()3()3=8
3()3()3()3= 2
3()3()3()3= 4
答
(3+3)/3+3=5 3*3/3+3=6
3/3+3+3=7 3*3-3/3=8
3/3+3/3=2
(3*3+3)/3=4