题目内容
一根绳子长10m,第一次用去
,第二次用去
m,还剩下______m.
| 1 |
| 5 |
| 1 |
| 5 |
10×(1-
)-
=10×
-
=8-
=7
(米)
答:还剩下7
米.
故答案为:7
.
| 1 |
| 5 |
| 1 |
| 5 |
=10×
| 4 |
| 5 |
| 1 |
| 5 |
=8-
| 1 |
| 5 |
=7
| 4 |
| 5 |
答:还剩下7
| 4 |
| 5 |
故答案为:7
| 4 |
| 5 |
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