题目内容
计算:
(1)(-4)-(+11)-(-9)
(2)(1
-
+
)×(-24)
(3)4
÷[(-3)2÷(-2)+|-2|].
(1)(-4)-(+11)-(-9)
(2)(1
| 1 |
| 2 |
| 3 |
| 8 |
| 7 |
| 12 |
(3)4
| 1 |
| 2 |
(1)原式=-4-11+9=-6;
(2)原式=-36+9-14=-41;
(3)原式=
÷[9÷(-2)+2]=
÷(-
+2)=
×(-
)=-
.
(2)原式=-36+9-14=-41;
(3)原式=
| 9 |
| 2 |
| 9 |
| 2 |
| 9 |
| 2 |
| 9 |
| 2 |
| 2 |
| 5 |
| 9 |
| 5 |
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