题目内容
计算
(1)-5+8-11
(2)8-8÷(-2)-(-1)2010
(3)(-
)÷|-1
|+
×(-1.5)
(4)-22×(-
)+8÷(-2)2.
(1)-5+8-11
(2)8-8÷(-2)-(-1)2010
(3)(-
| 5 |
| 6 |
| 2 |
| 3 |
| 4 |
(4)-22×(-
| 1 |
| 2 |
(1)-5+8-11,
=-16+8,
=-8;
(2)8-8÷(-2)-(-1)2010,
=8-(-4)-1,
=8+4-1,
=12-1,
=11;
(3)(-
)÷|-1
|+
×(-1.5),
=(-
)×
+2×(-1.5),
=-
-3,
=-3.5;
(4)-22×(-
)+8÷(-2)2,
=-4×(-
)+8÷4,
=2+2,
=4.
=-16+8,
=-8;
(2)8-8÷(-2)-(-1)2010,
=8-(-4)-1,
=8+4-1,
=12-1,
=11;
(3)(-
| 5 |
| 6 |
| 2 |
| 3 |
| 4 |
=(-
| 5 |
| 6 |
| 3 |
| 5 |
=-
| 1 |
| 2 |
=-3.5;
(4)-22×(-
| 1 |
| 2 |
=-4×(-
| 1 |
| 2 |
=2+2,
=4.
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