4*4*4-{[(-3)*(-3)*(-3)*(-3)]-[(-1)/2.5+2.25*(-4)]/(24.53-27.

我的美丽朋友2022-10-04 11:39:541条回答

4*4*4-{[(-3)*(-3)*(-3)*(-3)]-[(-1)/2.5+2.25*(-4)]/(24.53-27.53)}

已提交,审核后显示!提交回复

共1条回复
janet8209 共回答了28个问题 | 采纳率92.9%
原式=4×4×4-{[(-3)×(-3)×(-3)×(-3)]-[(-1)÷2.5+2.25×(-4)]÷(24.53-27.53)}=64-{(+81)-[(-1)×0.4+(-9)]÷(-3)}=64-[+81-3.6÷(-3)]=64-[+81-(-1.2)]=64-(+82.2)=64-82.2=-18.2
1年前

相关推荐