题目内容
一根长a米的绳子,如果用去
米,还剩______米,如果用去它的
,还剩______米.
| 2 |
| 7 |
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| 7 |
解(1)a-
(米);
(2)a×(1-
),
=a×
,
=
a(米);
故答案为:a-
;
a.
| 2 |
| 7 |
(2)a×(1-
| 2 |
| 7 |
=a×
| 5 |
| 7 |
=
| 5 |
| 7 |
故答案为:a-
| 2 |
| 7 |
| 5 |
| 7 |
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