0.8*32+3.2*2=0.8*32+32*0.2=32*(0.8+0.2)=32*1=322.6*3.7+26*0.63=26*0.37+26*0.62=26*(0.37+0.63)=26*1=2653*64+0.53*3600=53*64+53*36=53*(64+36)=53*100=5300