题目内容
一根长2米的绳子,先用去
,再用去
米,还剩下( )米.
| 1 |
| 3 |
| 1 |
| 3 |
2×(1-
)-
,
=2×
-
,
=
-
,
=1(米);
答还剩下1米.
故选C.
| 1 |
| 3 |
| 1 |
| 3 |
=2×
| 2 |
| 3 |
| 1 |
| 3 |
=
| 4 |
| 3 |
| 1 |
| 3 |
=1(米);
答还剩下1米.
故选C.
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