题目：
6×（-5）-24×(-| 1 |
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答案
解：6×（-5）-24×(-| 1 |
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=-30-24×（-
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=-30+12-18+8
=-28．
解：6×（-5）-24×(-
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| 2 |
| 3 |
| 4 |
| 1 |
| 3 |
=-30-24×（-
| 1 |
| 2 |
| 3 |
| 4 |
| 1 |
| 3 |
=-30+12-18+8
=-28．
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（2003·长沙）a、b两数在数轴上的位置如图所示，下列结论中正确的是（ ）