题目内容
| 5 |
| 6 |
| 3 |
| 4 |
| 3 |
| 4 |
| 5 |
| 6 |
考点:分数的四则混合运算
专题:运算顺序及法则
分析:先算
-
=0,剩下
+
应等于
,故本题错误.
| 3 |
| 4 |
| 3 |
| 4 |
| 5 |
| 6 |
| 5 |
| 6 |
| 5 |
| 3 |
解答:
解:
+
-
+
=
+
+
-
=
+
=
.
故答案为:×.
| 5 |
| 6 |
| 3 |
| 4 |
| 3 |
| 4 |
| 5 |
| 6 |
=
| 5 |
| 6 |
| 5 |
| 6 |
| 3 |
| 4 |
| 3 |
| 4 |
=
| 5 |
| 6 |
| 5 |
| 6 |
=
| 5 |
| 3 |
故答案为:×.
点评:本题考查了分数的加减运算.关键是看出剩下
+
应等于
.
| 5 |
| 6 |
| 5 |
| 6 |
| 5 |
| 3 |
练习册系列答案
相关题目