这些算式怎么简便计算?0.8*32+3.2*22.6*3.7+26*0.6353*64+0.53*3600
问题描述：
这些算式怎么简便计算?
0.8*32+3.2*2
2.6*3.7+26*0.63
53*64+0.53*3600
答
0.8*32+3.2*2
=0.8*32+(0.2*16)*2
=0.8*32+0.2*32
=(0.8+0.2)*32
=1*32
=32
2.6*3.7+26*0.63
=2.6*3.7+2.6*10*0.63
=2.6*(3.7+6.3)
=2.6*10
=26
53*64+0.53*3600
=53*64+0.53*100*36
=53*64+53*36
=53*(64+36)
=53*100
=5300
答
0.8*32+3.2*2
=0.8*32+32*0.2
=32*(0.8+0.2)
=32*1
=32
2.6*3.7+26*0.63
=26*0.37+26*0.62
=26*(0.37+0.63)
=26*1
=26
53*64+0.53*3600
=53*64+53*36
=53*(64+36)
=53*100
=5300
答
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
答
乘法分配律