题目内容
| 5 |
| 7 |
| 5 |
| 14 |
| 3 |
| 8 |
| ( ) |
| ( ) |
| ( ) |
| ( ) |
| ( ) |
| ( ) |
分析:本题根据乘法交换律分析填空即可.
解答:解:
×
×
=
×
×
故答案为:
×
×
.
| 5 |
| 7 |
| 5 |
| 14 |
| 3 |
| 8 |
| 5 |
| 7 |
| 3 |
| 8 |
| 5 |
| 14 |
故答案为:
| 5 |
| 7 |
| 3 |
| 8 |
| 5 |
| 14 |
点评:乘法交换律:在乘法算式中,交换两个因数的位置,积不变.
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| 5 |
| 7 |
| 5 |
| 14 |
| 3 |
| 8 |
| ( ) |
| ( ) |
| ( ) |
| ( ) |
| ( ) |
| ( ) |
| 5 |
| 7 |
| 5 |
| 14 |
| 3 |
| 8 |
| 5 |
| 7 |
| 3 |
| 8 |
| 5 |
| 14 |
| 5 |
| 7 |
| 3 |
| 8 |
| 5 |
| 14 |