简便用算 5.6×0.375+8分之3×5.4-0.375×0.9

简便用算 5.6×0.375+8分之3×5.4-0.375×0.9
简便用算 5.6×0.375+8分之3×5.4-0.375×0.9

简便用算 5.6×0.375+8分之3×5.4-0.375×0.9
(5.6+5.4-0.9)x0.375
PS:八分之三是0.375

0.375=3/8 这样就好计算了 原式=（5.6+5.4-0.9）x3/8=3.7875

5.6×0.375+8分之3×5.4-0.375×0.9
=0.375(5.6+5.4-0.9)
=0.375×10.1
=3.7875