数学题:兔妈妈拔回家一筐萝卜
- 时间:2020-06-05 20:30:28
- 分类:数学世界
- 阅读:83 次
数学题:兔妈妈拔回家一筐萝卜,三只小兔都要数有多少个:第一只小兔4个4个的数,最后剩下3个;第二只小兔5个5个的数,最后剩下4个;第三只小兔6个6个的数,最后剩下5个。你能帮小兔们想一想,这匡萝卜至少有多少个?
数学题解答:“4个4个的数,最后剩下3个”也可以理解为“萝卜个数比4的倍数还差1个”,另外两只小兔数的情况,也可以用类似的方式来思考。
所以只需求出3、4、5的最小公倍数,再减1,就得出了萝卜的个数:
3×4×5-1=59(个)
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