题目内容
| 3 |
| 4 |
| 4 |
| 7 |
分析:先算
与
的和,再用1除以所得的和即可.
| 3 |
| 4 |
| 4 |
| 7 |
解答:解:1÷(
+
)
=1÷
=
.
答:是
.
| 3 |
| 4 |
| 4 |
| 7 |
=1÷
| 37 |
| 28 |
=
| 28 |
| 37 |
答:是
| 28 |
| 37 |
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
| 3 |
| 4 |
| 4 |
| 7 |
| 3 |
| 4 |
| 4 |
| 7 |
| 3 |
| 4 |
| 4 |
| 7 |
| 37 |
| 28 |
| 28 |
| 37 |
| 28 |
| 37 |