题目内容
计算
(1)-3+(-3)-(-6)
(2)3×(-
)÷
(3)-22+3×(-1)3-(-4)×5
(4)-1-[2-(1-
×0.5)]×[32-(-2)2].
(1)-3+(-3)-(-6)
(2)3×(-
| 4 |
| 5 |
| 9 |
| 10 |
(3)-22+3×(-1)3-(-4)×5
(4)-1-[2-(1-
| 1 |
| 3 |
(1)-3+(-3)-(-6)
=-6+6
=0;
(2)3×(-
)÷
=-3×
×
=-2
;
(3)-22+3×(-1)3-(-4)×5
=-4+3×(-1)+20
=-4-3+20
=13
(4)-1-[2-(1-
×0.5)]×[32-(-2)2]
=-1-[2-(1-
)]×[9-4]
=-1-[2-
]×5
=-1-
×5
=-1-5
=-6
.
=-6+6
=0;
(2)3×(-
| 4 |
| 5 |
| 9 |
| 10 |
=-3×
| 4 |
| 5 |
| 10 |
| 9 |
=-2
| 2 |
| 3 |
(3)-22+3×(-1)3-(-4)×5
=-4+3×(-1)+20
=-4-3+20
=13
(4)-1-[2-(1-
| 1 |
| 3 |
=-1-[2-(1-
| 1 |
| 6 |
=-1-[2-
| 5 |
| 6 |
=-1-
| 7 |
| 6 |
=-1-5
| 5 |
| 6 |
=-6
| 5 |
| 6 |
练习册系列答案
相关题目