(8+8×3/4-2)÷(1-2/5-2/5×3/4-1/10)
=(8+6-2)÷(1-2/5-3/10-1/10)
=12÷1/5
=60米
一根绳子,第一次用去全长的5分之2又8米,第二次用去的是第一次的4分之3少2米,这时还剩下全长的10分之1,全长有多少米?
一根绳子,第一次用去全长的5分之2又8米,第二次用去的是第一次的4分之3少2米,这时还剩下全长的10分之1,全长有多少米?
用算术法!
用算术法!
数学人气:972 ℃时间:2020-02-03 05:55:10
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