将2,-7,1,-5这四个数进行加减乘除运算,可加括号,使其结果等于24。

将2,-7,1,-5这四个数进行加减乘除运算,可加括号,使其结果等于24。
2025-03-23 17:05:10
推荐回答(3个)
回答1:

(-7-1)*(-5+2)=24

回答2:

2x【-(-7)-(-5)】x1=24

回答3:

(2+-5)*(-7-1)
((2+-7)*-5)-1
(-5+2)*(-7-1)
(-5*(2+-7))-1
(-5*(-7+2))-1
(-7-1)*(2+-5)
(-7-1)*(-5+2)
((-7+2)*-5)-1