120÷(1-60%),
=120÷40%,
=120÷0.4,
=300(页);
答:这本共有300页.
王林读一本故事书,已经读了全书的60%,还剩120页没读,这本书共有多少页?
王林读一本故事书,已经读了全书的60%,还剩120页没读,这本书共有多少页?
数学人气:758 ℃时间:2020-03-26 17:17:21
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