36.4*0.46+3.6*5.4简便运算
=( 36+0.4 )*0.46+36*0.54
= 36 x 0.46 + 36 x 0.54 + 0.4 x 0.46
= 36 x (0.46 + 0.54) + 0.184
= 36 .184