4.4*28.6+41.6*5.6 简便计算_数学解答

4.4*28.6+41.6*5.6 简便计算

人气：370 ℃　时间：2020-06-02 01:40:03

解答

原式=4.4*5.6+4.4*23+41.6*5.6
=46*5.6+4.4*23
=23*5.6+23*5.6+4.4*23
=23*（5.6+4.4）+23*5.6
=23*10+23*5.6
=230+128.8
=358.8