题目内容
| 4 |
| 5 |
| 2 |
| 3 |
| 2 |
| 3 |
| 4 |
| 5 |
×
×
.分析:按照分数的四则混合运算的运算顺序进行计算,然后直接判断即可.
解答:解:
÷
-
÷
,
=
×
-
×
,
=
-
,
=
-
,
=
;
故答案为:×.
| 4 |
| 5 |
| 2 |
| 3 |
| 2 |
| 3 |
| 4 |
| 5 |
=
| 4 |
| 5 |
| 3 |
| 2 |
| 2 |
| 3 |
| 5 |
| 4 |
=
| 6 |
| 5 |
| 5 |
| 6 |
=
| 36 |
| 30 |
| 25 |
| 30 |
=
| 11 |
| 30 |
故答案为:×.
点评:本题把整数的四则混合运算的顺序扩展到分数、小数的四则混合运算同样适用.
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