题目内容
细心算一算,一定算对哟!
(1)(1-1
-
+
)×(-24)
(2)-25÷(-4)×(
)2-12×(-15+24)3
(1)(1-1
| 1 |
| 2 |
| 3 |
| 8 |
| 7 |
| 12 |
(2)-25÷(-4)×(
| 1 |
| 2 |
(1)原式=1×(-24)-1
×(-24)-
×(-24)+
×(-24)
=-24+36+9-14
=-38+45
=7;
(2)原式=-32÷(-4)×
-12×(-15+16)3
=-32×(-
)×
-12×13
=2-12
=-10.
| 1 |
| 2 |
| 3 |
| 8 |
| 7 |
| 12 |
=-24+36+9-14
=-38+45
=7;
(2)原式=-32÷(-4)×
| 1 |
| 4 |
=-32×(-
| 1 |
| 4 |
| 1 |
| 4 |
=2-12
=-10.
练习册系列答案
相关题目