题目内容
|
21÷
|
|
24÷
|
(1)
×18=14;
(2)21÷
,
=21×
,
=27;
(3)
÷
,
=
×
,
=
;
(4)24÷
×18,
=24×
×18,
=1944.
| 7 |
| 9 |
(2)21÷
| 7 |
| 9 |
=21×
| 9 |
| 7 |
=27;
(3)
| 3 |
| 10 |
| 2 |
| 5 |
=
| 3 |
| 10 |
| 5 |
| 2 |
=
| 3 |
| 4 |
(4)24÷
| 2 |
| 9 |
=24×
| 9 |
| 2 |
=1944.
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