0.41*1.59-8.43*0.59+4.42*0.59简便方法_数学解答

0.41*1.59-8.43*0.59+4.42*0.59简便方法

人气：141 ℃　时间：2020-02-05 10:23:57

解答

原式=0.41x(1+0.59)-0.59x8.43+4.42x0.59
=0.59x(4.42+0.41-8.43)+0.41
=0.59x3.6+0.41
=3.6x(1-0.41)+0.41
=3.6-2.6x0.41
=2.534