题目内容
计算:
①
-
-(-
)+(-
)
②15-〔1-(-10-4)〕
③(-
-
+
)÷
④-14-[2-(-3)2]÷(-
)3.
①
| 2 |
| 3 |
| 1 |
| 6 |
| 1 |
| 3 |
| 5 |
| 6 |
②15-〔1-(-10-4)〕
③(-
| 3 |
| 4 |
| 2 |
| 9 |
| 5 |
| 12 |
| 1 |
| 36 |
④-14-[2-(-3)2]÷(-
| 1 |
| 2 |
①原式=(
+
)-(
+
)
=1-1
=0;
②原式=15-1-10-4
=0;
③原式=(-
-
+
)×36
=-27-8+15
=-20;
④原式=-1-(2-9)×(-8)
=-1-56
=-57.
| 2 |
| 3 |
| 1 |
| 3 |
| 1 |
| 6 |
| 5 |
| 6 |
=1-1
=0;
②原式=15-1-10-4
=0;
③原式=(-
| 3 |
| 4 |
| 2 |
| 9 |
| 5 |
| 12 |
=-27-8+15
=-20;
④原式=-1-(2-9)×(-8)
=-1-56
=-57.
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