8.8X1.37-0.88X3.7
=8.8X1.37-0.88X10X3.7÷10
=8.8X1.37-8.8X0.37
=8.8X(1.37-0.37)
=8.8
8.8×1.37一0.88×3.7
=8.8x(1.37-0.37)
=8.8x1
=8.8
【(8.8*10)*(1.37*100)/1000】-【(0.88*100)*(3.7*10)/1000】
=88*137/1000-88*37/1000
={88*137-88*37}/1000
=88*(137-37)/1000
=88*100/1000
=8800/1000
=8.8
你看下你小数点有没有写错 应该是写错了哈不然没有简便算法的