Question

72×39+72×48+72如何简便计算

Answer 1

72×39+72×48+72简便计算方法 72×39,72×48,72都有一个72,那么,可以用乘法结合律简便计算: 72×39+72×48+72 =72×39+72×48+72×1 =72×(39+48+1)
=72×88
=6336

Answer 2

72×39+72×48+72简便计算方法 72×39,72×48,72都有一个72,那么,可以用乘法结合律简便计算: 72×39+72×48+72 =72×39+72×48+72×1 =72×(39+48+1) =72×88 =6336

Answer 3

72×39+72×48+72简便计算方法
72×39+72×48+72
=72×39+72×48+72×1
=72×（39+48+1）
=72×88
=72×（90-2）
=6480-144
=6336

Answer 4

简便计算如下
72×39+72×48+72 =72×39+72×48+72×1
=72×（39+48+1）
=72×88
=6336
运用乘法结合律计算

Answer 5

72×39+72×48+72如何简便计算
简便计算如下 72×38+72×61+72 =72×38+72×61+72×1 =72×(38+61+1) =72×100 =7200 运用乘法结合律计算