题目内容
一根绳子减去一半,再剪去余下的一半,剩3米,绳子原来多少米?
1-
=
,
×
=
,
3÷(1-
-
),
=3÷
,
=12(米),
答:绳子原来12米.
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3÷(1-
| 1 |
| 2 |
| 1 |
| 4 |
=3÷
| 1 |
| 4 |
=12(米),
答:绳子原来12米.
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