题目内容
| 2 |
| 7 |
| 2 |
| 7 |
| 2 |
| 7 |
| 1 |
| 6 |
| 1 |
| 6 |
| 1 |
| 6 |
| 1 |
| 6 |
考点:分数乘法
专题:运算顺序及法则
分析:一个数乘上整数,都表示求几个相同加数和的简便运算,由此求解.
解答:
解:
+
+
=
×3=
;
+
+
+
=
×4=
=
.
故答案为:
,3,
;
,4,
,
.
| 2 |
| 7 |
| 2 |
| 7 |
| 2 |
| 7 |
| 2 |
| 7 |
| 6 |
| 7 |
| 1 |
| 6 |
| 1 |
| 6 |
| 1 |
| 6 |
| 1 |
| 6 |
| 1 |
| 6 |
| 4 |
| 6 |
| 2 |
| 3 |
故答案为:
| 2 |
| 7 |
| 6 |
| 7 |
| 1 |
| 6 |
| 4 |
| 6 |
| 2 |
| 3 |
点评:理解小数乘整数的意义是解答此题的关键.
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