题目内容
用递等式计算.
①
-
×
②
×
÷4
③
+
÷
.
①
| 11 |
| 4 |
| 7 |
| 4 |
| 5 |
| 7 |
②
| 2 |
| 7 |
| 14 |
| 5 |
③
| 3 |
| 5 |
| 2 |
| 5 |
| 3 |
| 10 |
①
-
×
,
=
-
,
=
;
②
×
÷4,
=
÷4,
=
;
③
+
÷
=
+
×
,
=
+
,
=
.
| 11 |
| 4 |
| 7 |
| 4 |
| 5 |
| 7 |
=
| 11 |
| 4 |
| 5 |
| 4 |
=
| 3 |
| 2 |
②
| 2 |
| 7 |
| 14 |
| 5 |
=
| 4 |
| 5 |
=
| 1 |
| 5 |
③
| 3 |
| 5 |
| 2 |
| 5 |
| 3 |
| 10 |
=
| 3 |
| 5 |
| 2 |
| 5 |
| 10 |
| 3 |
=
| 3 |
| 5 |
| 4 |
| 3 |
=
| 32 |
| 15 |
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