题目内容
一根钢条
米,用去
,还剩多少米?用去
米,还剩多少米?用去一些后还剩
,还剩多少米?
| 5 |
| 8 |
| 上 |
| 3 |
| 上 |
| 3 |
| 上 |
| 3 |
①
×(七-
),
=
×
,
=
(米);
答:还剩
米.
②
-
=
(米);
答:还剩
米.
③
×
=
(米);
答:还剩
米.
| 7 |
| 8 |
| 七 |
| 8 |
=
| 7 |
| 8 |
| 3 |
| 8 |
=
| 七7 |
| 3j |
答:还剩
| 七7 |
| 3j |
②
| 7 |
| 8 |
| 七 |
| 8 |
| 3 |
| 8 |
答:还剩
| 3 |
| 8 |
③
| 7 |
| 8 |
| 七 |
| 8 |
| 7 |
| 3j |
答:还剩
| 7 |
| 3j |
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