题目内容
| 3 |
| 8 |
| ( ) |
| ( ) |
| 11 |
| 5 |
| ( ) |
| ( ) |
| 1 |
| 6 |
| ( ) |
| ( ) |
| ( ) |
| ( ) |
| 1 |
| 6 |
分析:根据在乘法算式里,一个因数=积÷另一个因数;在加法算式里,一个加数=和÷另一个加数;在减法算式里,被减数=差+减数;据此代入计算即可.
解答:解:因为1÷
=
,1÷
=
,1-
=
,1+
=
;
所以
×
=
×
=
+
=
-
=1.
故答案为:
,
,
,
.
| 3 |
| 8 |
| 8 |
| 3 |
| 11 |
| 5 |
| 5 |
| 11 |
| 1 |
| 6 |
| 5 |
| 6 |
| 1 |
| 6 |
| 7 |
| 6 |
所以
| 3 |
| 8 |
| 8 |
| 3 |
| 11 |
| 5 |
| 5 |
| 11 |
| 1 |
| 6 |
| 5 |
| 6 |
| 7 |
| 6 |
| 1 |
| 6 |
故答案为:
| 8 |
| 3 |
| 5 |
| 11 |
| 5 |
| 6 |
| 7 |
| 6 |
点评:此题运用乘与除的互逆关系与加与减的互逆关系解决问题,熟记关系式即可.
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