0.65*47+6.5*5.3用简便算法怎么算
来源:学生作业帮助网 编辑:作业帮 时间:2024/05/13 15:14:05
0.65*47+6.5*5.3用简便算法怎么算
0.65*47+6.5*5.3用简便算法怎么算
0.65*47+6.5*5.3用简便算法怎么算
0.65×47+6.5×5.3
=0.65×47+0.65×53
=0.65×(47+53)
=0.65×100
=65
0.65*47+6.5*5.3
=6.5X4.7+6.5x5.3
=6.5x(4.7+5.3)
=6.5x10
=65