题目内容
| 2 |
| 7 |
| 2 |
| 7 |
| 2 |
| 7 |
| 2 |
| 7 |
| 2 |
| 7 |
| 2 |
| 7 |
| 6 |
| 7 |
| 6 |
| 7 |
| 2 |
| 7 |
| 2 |
| 7 |
3
3
=| 6 |
| 7 |
| 6 |
| 7 |
分析:
+
+
,即三个
相加,根据分数乘整数的意义:求几个相同加数的和是多少,用乘法解答即可.
| 2 |
| 7 |
| 2 |
| 7 |
| 2 |
| 7 |
| 2 |
| 7 |
解答:解:
+
+
=
;
×3=
;
故答案为:
,
,
,
,3,
.
| 2 |
| 7 |
| 2 |
| 7 |
| 2 |
| 7 |
| 6 |
| 7 |
| 2 |
| 7 |
| 6 |
| 7 |
故答案为:
| 2 |
| 7 |
| 2 |
| 7 |
| 2 |
| 7 |
| 2 |
| 7 |
| 6 |
| 7 |
点评:解答此题应明确:求几个相同加数的和是多少,可以用加法,也可以用乘法解答.
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