题目内容
计算
(1)-7+11-9
(2)(
+
-
)×(-60)
(3)(-18)÷2
×
÷(-16)
(4)
+
-|-2|
(5)32÷(-2)4-(-
)3×(-4)
(6)(-
)2+(
+
)-(-2)3.
(1)-7+11-9
(2)(
| 3 |
| 4 |
| 7 |
| 12 |
| 7 |
| 6 |
(3)(-18)÷2
| 1 |
| 4 |
| 4 |
| 9 |
(4)
| 3 | -8 |
|
(5)32÷(-2)4-(-
| 1 |
| 2 |
(6)(-
| 5 |
| 3 | -
| ||
| 1 |
| 3 |
(1)原式=-16+11
=-5;
(2)原式=
×(-60)+
×(-60)-
×(-60)
=-45-35+70
=-10;
(3)原式=18×
×
×
=
;
(4)原式=-2+
-2
=-
;
(5)原式=32÷16-(-
)×(-4)
=2-
=
;
(6)原式=5+(-
+
)+8
=13-
=
.
=-5;
(2)原式=
| 3 |
| 4 |
| 7 |
| 12 |
| 7 |
| 6 |
=-45-35+70
=-10;
(3)原式=18×
| 4 |
| 9 |
| 4 |
| 9 |
| 1 |
| 16 |
=
| 2 |
| 9 |
(4)原式=-2+
| 8 |
| 9 |
=-
| 28 |
| 9 |
(5)原式=32÷16-(-
| 1 |
| 8 |
=2-
| 1 |
| 2 |
=
| 3 |
| 2 |
(6)原式=5+(-
| 2 |
| 3 |
| 1 |
| 3 |
=13-
| 1 |
| 3 |
=
| 38 |
| 3 |
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