题目内容
计算
(1)(-4)-(+13)+(-5)-(-9)
(2)(-48)÷8-(-25)×(-6)
(3)-14-(1-0.5)×
×[2-(3)2]
(4)(
-
-
)×(-60)
(1)(-4)-(+13)+(-5)-(-9)
(2)(-48)÷8-(-25)×(-6)
(3)-14-(1-0.5)×
| 1 |
| 3 |
(4)(
| 2 |
| 3 |
| 1 |
| 12 |
| 1 |
| 15 |
(1)原式=-4-13-5+9
=-13;
(2)原式=-6-150
=-156;
(3)原式=-1-
×
×(-7)
=-1+
=
;
(4)原式=-40+5+4
=-31.
=-13;
(2)原式=-6-150
=-156;
(3)原式=-1-
| 1 |
| 2 |
| 1 |
| 3 |
=-1+
| 7 |
| 6 |
=
| 1 |
| 6 |
(4)原式=-40+5+4
=-31.
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