摘要:计算下列各题: ①(-)×0.38-(-)×(-) , ② ,
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计算下列各题:
(1)16+(-29)-(-7)-(+11);
(2)(-1)2003+(-
)×12+(-
)×21;
(3)-52-[1
-(+
)+(-
)]×24;
(4)(-3)2-[-5+(1-
×1
)÷(-2)]×|5-6|;
(5)9a2-2a+7a2-(a2-3a);
(6)x2y-[5xy2-2(x2y-3xy2)]. 查看习题详情和答案>>
(1)16+(-29)-(-7)-(+11);
(2)(-1)2003+(-
| 1 |
| 2 |
| 1 |
| 3 |
(3)-52-[1
| 1 |
| 6 |
| 1 |
| 3 |
| 3 |
| 8 |
(4)(-3)2-[-5+(1-
| 1 |
| 2 |
| 1 |
| 5 |
(5)9a2-2a+7a2-(a2-3a);
(6)x2y-[5xy2-2(x2y-3xy2)]. 查看习题详情和答案>>