480x38+380x52的简便计算

来源：百度知道 编辑：UC知道 时间：2024/06/15 22:44:21

480*38+380*52=(380+100)*38+380*52=380*38+100*38+380*52=380*(38+52)+100*38=380*90+3800=380*(100-10)+3800=380*100-380*10+3800=380*100-3800+3800=38000

480X38+380X52
=480X(38+52)
=480X90
=480X(100-10)
=480X100-480X10
=48000-4800
=43200

=10(48*38+38*52)
=10{38*(48+52)}
=10(38*100)
=38000

480x38+380x52
=38x(480+10x52)
=38x1000
=38000

原式=48*380+380*52
=（48+52）*380
=38000

(380+100)*38+380*52
=380*38+100*38+380*52
=380*(10+38)+380*52
=380*48+380*52
=380*(48+52)
=380*100
=38000