题目内容
计算:
(1)-20+(-14)-(-18)+|-13|;
(2)(
-
+
)×(-24);
(3)-32×[(1-7)÷6]3+75÷(-5)2;
(4)(-2)3-1
×(-
)-(-2)×(-1)×(-4);
(1)-20+(-14)-(-18)+|-13|;
(2)(
| 5 |
| 8 |
| 1 |
| 6 |
| 7 |
| 12 |
(3)-32×[(1-7)÷6]3+75÷(-5)2;
(4)(-2)3-1
| 3 |
| 4 |
| 8 |
| 21 |
(1)原式=-20-14+18+13
=-3.
(2)原式=
×(-24)-
×(-24)+
×(-24)
=-15+4-14
=-25.
(3)原式=-9×(-1)+75÷25
=12.
(4)原式=-8+
+8
=
.
=-3.
(2)原式=
| 5 |
| 8 |
| 1 |
| 6 |
| 7 |
| 12 |
=-15+4-14
=-25.
(3)原式=-9×(-1)+75÷25
=12.
(4)原式=-8+
| 2 |
| 3 |
=
| 2 |
| 3 |
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