题目内容
计算
(1)-3-5+4;
(2)(-
-
+
)÷
;
(3)8-(-4)÷22+(-3)×(-4);
(4)-14-[2-(-32].
(1)-3-5+4;
(2)(-
| 3 |
| 4 |
| 1 |
| 2 |
| 1 |
| 6 |
| 1 |
| 36 |
(3)8-(-4)÷22+(-3)×(-4);
(4)-14-[2-(-32].
(1)原式=-8+4
=-4;
(2)原式=(-
-
+
)×36
=-
×36-
×36+
×36
=-27-18+6
-=-45+6
=-39;
(3)原式=8-(-4)÷4+12
=8-(-1)+12
=8+1+12
=21;
(4)原式=-1-[2-(-9)]
=-1-[2+9]
=-1-11
=-12.
=-4;
(2)原式=(-
| 3 |
| 4 |
| 1 |
| 2 |
| 1 |
| 6 |
=-
| 3 |
| 4 |
| 1 |
| 2 |
| 1 |
| 6 |
=-27-18+6
-=-45+6
=-39;
(3)原式=8-(-4)÷4+12
=8-(-1)+12
=8+1+12
=21;
(4)原式=-1-[2-(-9)]
=-1-[2+9]
=-1-11
=-12.
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