
计算:(1)115×(13?12)×311÷54(2)?42?[(?3)3+(1?0.6×23)÷(?4)].
计算:(1)115×(13?12)×311÷54(2)?42?[(?3)3+(1?0.6×23)÷(?4)]....
计算:(1)115×(13?12)×311÷54(2)?42?[(?3)3+(1?0.6×23)÷(?4)].
展开
1个回答
展开全部
(1)
×(
?
)×
÷
=
×(-
)×
×
=-
;
(2)?42?[(?3)3+(1?0.6×
)÷(?4)]
=-16-[-27+(1-0.4)÷(-4)]
=-16-[-27+0.6÷(-4)]
=-16-[-27-0.15]
=-16+27.15
=11.15.
11 |
5 |
1 |
3 |
1 |
2 |
3 |
11 |
5 |
4 |
=
11 |
5 |
1 |
6 |
3 |
11 |
4 |
5 |
=-
2 |
25 |
(2)?42?[(?3)3+(1?0.6×
2 |
3 |
=-16-[-27+(1-0.4)÷(-4)]
=-16-[-27+0.6÷(-4)]
=-16-[-27-0.15]
=-16+27.15
=11.15.
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询