题目内容
| 3 |
| 8 |
| 8 |
| 15 |
| 8 |
| 3 |
| 5 |
| 8 |
分析：根据分数、小数四则运算的顺序，先算乘除、后算加减，有括号的先算括号里的．
解答：解：
÷[75%-
÷
×（62.5%-
）
=
÷[75%-
÷
×0]
=
÷[75%-0]
=
÷75%
=
÷
=
×
=
| 3 |
| 8 |
| 8 |
| 15 |
| 8 |
| 3 |
| 5 |
| 8 |
=
| 3 |
| 8 |
| 8 |
| 15 |
| 8 |
| 3 |
=
| 3 |
| 8 |
=
| 3 |
| 8 |
=
| 3 |
| 8 |
| 3 |
| 4 |
=
| 3 |
| 8 |
| 4 |
| 3 |
=
| 1 |
| 2 |
点评：此题做题的关键是看运算顺序，然后根据任何数和0相乘都得0，用简便算法直接得出，并做进一步计算．
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