6.72*3.6+37.8*0.36的简便计算怎么写?

来源：百度知道 编辑：UC知道 时间：2024/06/17 17:30:07
还有369*0.99+3.69
=
(0.64+0.32)/0.64
=
13.5*2.5-0.35*25
=
要过程!!!

6.72*3.6+37.8*0.36
=6.72*3.6+3.78+3.6
=(6.72+3.78)*3.6
=10.5*3.6
=37.8

369*0.99+3.69
=3.69*99+3.69
=3.69*(99+1)
=369

(0.64+0.32)/0.64
= 0.64/0.64+0.32/0.64
=1+0.5
=1.5

13.5*2.5-0.35*25
=13.5*2.5-3.5*2.5
=(13.5-3.5)*2.5
=10*2.5
=25

6.72*3.6+37.8*0.36
=6.72*10*0.36+37.8*0.36
=67.2*036+37.8*0.36
=(67.2+37.8)*0.36
=105*0.36
=37.8

369*0.99+3.69
=3.69*100*0.99+3.69
=3.69*99+3.69
=3.69*(99+1)
=3.69*100
=369

(0.64+0.32)/0.64
=0.64/0.64+0.32/0.64
=1+0.5
=1.5

13.5*2.5-0.35*25
=13.5*2.5-0.35*10*2.5
=13.5*2.5-3.5*2.5
=(13.5-3.5)*2.5
=10*2.5
=25

6.72*3.6+37.8*0.36
=67.2*0.36+37.8*0.36
=(67.2+37.8)*0.36
=105*0.36
=37.8

369*0.99+3.69
=3.69*99+3.69
=3.69*(99+1)
=3.69*100
=369

(0.64+0.32)/0.64