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100÷(5-1)=100÷4=25(級)25×(6-1)=25×5=125(級)答:小芳每天上樓要走125級臺階.注:因為1樓並不用走,小麗只用走4個臺階,囙此可求出每層樓之間的階梯為25級,則可以求出小芳要走的臺階數了.很高興為你解答,…
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