题目内容
| 2 |
| 3 |
| 1 |
| 2 |
分析:先依据分数乘法意义,求出
乘2的积,再用求得的积减
即可求解.
| 2 |
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解答:解:
×2-
=
-
=
答:差是
.
| 2 |
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| 1 |
| 2 |
=
| 4 |
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=
| 5 |
| 6 |
答:差是
| 5 |
| 6 |
点评:明确运算的顺序,并能正确进行计算,是此类题目考查知识点.
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