题目内容
| 1 |
| 2 |
| 7 |
| 8 |
| 4 |
| 5 |
| 1 |
| 2 |
| 7 |
| 10 |
| 1 |
| 2 |
| 10 |
| 7 |
| 5 |
| 7 |
×
×
. (判断对错)分析:算式
÷
×
,应从左往右依次计算,不能先算乘法,故本题错误.
| 1 |
| 2 |
| 7 |
| 8 |
| 4 |
| 5 |
解答:解:
÷
×
=
×
×
=
×
=
.
故答案为:×.
| 1 |
| 2 |
| 7 |
| 8 |
| 4 |
| 5 |
=
| 1 |
| 2 |
| 8 |
| 7 |
| 4 |
| 5 |
=
| 4 |
| 7 |
| 4 |
| 5 |
=
| 16 |
| 35 |
故答案为:×.
点评:此题主要考查学生对分数四则混合运算顺序的掌握情况.
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