(3/8+2/17)×8+1/17的簡便計算

(3/8+2/17)×8+1/17的簡便計算


(3/8+2/17)×8+1/17
=3/8×8+2/17×8+1/17
=3+(16/17+1/17)
=3+1
=4



456-(56+118)真樣簡便算灋


456-(56+118)=456-56-118 400-118 =282
記得採納啊