想一想,填一填()/13/4=5/()5/9/()/4=()276/35/()/5=3/()

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想一想,填一填()/13/4=5/()5/9/()/4=()276/35/()/5=3/()想一想,填一填()/13/4=5/()5/9/()/4=()276/35/()/5=3/()想一想,填一填(

想一想,填一填()/13/4=5/()5/9/()/4=()276/35/()/5=3/()
想一想,填一填
()/13/4=5/()
5/9/()/4=()27
6/35/()/5=3/()

想一想,填一填()/13/4=5/()5/9/()/4=()276/35/()/5=3/()
1.(5/4); (13)
2.(3); (20)
3.(2); (7)

这是什么题,脑筋急转弯?

不懂得啊 看看被人