题目内容
| 4 |
| 5 |
| 1 |
| 2 |
| 1 |
| 3 |
分析:先算
减去
的差,再用
乘所得的差.
| 1 |
| 2 |
| 1 |
| 3 |
| 4 |
| 5 |
解答:解:
×(
-
)
=
×
=
.
答:积是
.
| 4 |
| 5 |
| 1 |
| 2 |
| 1 |
| 3 |
=
| 4 |
| 5 |
| 1 |
| 6 |
=
| 2 |
| 15 |
答:积是
| 2 |
| 15 |
点评:根据题意,先弄清运算顺序,然后再列式解答.
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题目内容
| 4 |
| 5 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 2 |
| 1 |
| 3 |
| 4 |
| 5 |
| 4 |
| 5 |
| 1 |
| 2 |
| 1 |
| 3 |
| 4 |
| 5 |
| 1 |
| 6 |
| 2 |
| 15 |
| 2 |
| 15 |