“12×5”有多种分拆方法,请你接着往下算。12×5=10×5+2×5==12×5=4×5+8×5==
10-÷×1
325×0.36+6.75×36
5.6×0.375+×5.4-0.375×0.9
5.6x+4x=17.28
x+=