题目内容
计算:
(1)(-5)+(-6)-(+12)-(-7)
(2)8-3÷(-
)×(-3)
(3)-14-(-6
)×
+(-2)3
(4)[2-5×(-
)2]÷(-
)
(5)(-5)×|-8|-|-3+1|-(-2)
(6)(-
+
-
)×(-60).
(1)(-5)+(-6)-(+12)-(-7)
(2)8-3÷(-
| 1 |
| 3 |
(3)-14-(-6
| 1 |
| 2 |
| 4 |
| 13 |
(4)[2-5×(-
| 1 |
| 2 |
| 1 |
| 4 |
(5)(-5)×|-8|-|-3+1|-(-2)
(6)(-
| 11 |
| 12 |
| 2 |
| 3 |
| 14 |
| 15 |
(1)原式=-5-6-12+7=-23+7=-16;
(2)原式=8-3×3×3=8-27=-19;
(3)原式=-1+
×
-8=-1+2-8=-7;
(4)原式=(2-
)÷(-
)=
÷(-
)=-3;
(5)原式=-5×8-2+2=-40;
(6)原式=
×60-
×60+
×60=55-40+56=71.
(2)原式=8-3×3×3=8-27=-19;
(3)原式=-1+
| 13 |
| 2 |
| 4 |
| 13 |
(4)原式=(2-
| 5 |
| 4 |
| 1 |
| 4 |
| 3 |
| 4 |
| 1 |
| 4 |
(5)原式=-5×8-2+2=-40;
(6)原式=
| 11 |
| 12 |
| 2 |
| 3 |
| 14 |
| 15 |
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