题目内容
（1）
×5.3+0.125×5.7-1÷8
（2）(8.8-3
-2
)×1
（3）46×
．
| 1 |
| 8 |
（2）(8.8-3
| 5 |
| 11 |
| 6 |
| 11 |
| 9 |
| 14 |
（3）46×
| 17 |
| 45 |
（1）
| 1 |
| 8 |
=0.125×5.3+0.125×5.7-0.125，
=0.125×（5.3+5.7-1），
=0.125×10，
=1.25；
（2）(8.8-3
| 5 |
| 11 |
| 6 |
| 11 |
| 9 |
| 14 |
=[8.8-（3
| 5 |
| 11 |
| 6 |
| 11 |
| 9 |
| 14 |
=[8.8-6]×1
| 9 |
| 14 |
=2.8×1
| 9 |
| 14 |
=4.6；
（3）46×
| 17 |
| 45 |
=（45+1）×
| 17 |
| 45 |
=45×
| 17 |
| 45 |
| 17 |
| 45 |
=17+
| 17 |
| 45 |
=17
| 17 |
| 45 |
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