26×23+25×17的简便计算方法

2024-11-19 02:35:19
推荐回答(5个)
回答1:

原式=26×(20+3)+25×(4×4+1)
=26×20+26×3+(25×4)×4+25
=520+78+100×4+25
=598+425
=600+423
=1023

回答2:

26×23+25×17
=(25+1)×23+25×17
=25×23+1×23+25×17
=25×(23+17)+23
=25×40+23
=1000+23
=1023

回答3:

26×23+25×17
=25×23+25×17+23
=25×(23+17)+23
=25×40+23
=1000+23
=1023

回答4:

=(25+1)x23+25x17
=25x(23+17)+23
=25x40+23
=1000+23
=1023

回答5:

26×23+25×17
=25x(23+17)+23
=25x40+23
=1000+23
=1023