题目内容
计算:
(1)-8+4÷(-2)
(2)(
+
-
)×(-60);
(3)-32÷
+
÷(-22)
(4)2×(-1)2006+
÷(-
).
(1)-8+4÷(-2)
(2)(
| 3 |
| 4 |
| 7 |
| 12 |
| 7 |
| 6 |
(3)-32÷
| 9 |
| 4 |
| 4 |
| 9 |
(4)2×(-1)2006+
| 3 | 8 |
| 1 |
| 2 |
(1)原式=-8-2=-10;
(2)原式=(
+
-
)×(-60)
=
×(-60)
=-10;
(3)原式=-9×
+
×(-
)
=-4-
=-4
;
(4)原式=2×1+2×(-2)
=2-4
=-2.
(2)原式=(
| 9 |
| 12 |
| 7 |
| 12 |
| 14 |
| 12 |
=
| 1 |
| 6 |
=-10;
(3)原式=-9×
| 4 |
| 9 |
| 4 |
| 9 |
| 1 |
| 4 |
=-4-
| 1 |
| 9 |
=-4
| 1 |
| 9 |
(4)原式=2×1+2×(-2)
=2-4
=-2.
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