1、25×32的简便方法：
=25x4x8
=100x8
=800
2、25×32的简便方法:
=25x2x16
=50x16
=800
3、25×32的简便方法
=5x5x32
=5x160
=800
4、25×32的简便方法:
=(20+5)x32
=20x32+5x32
=640+160
=800
5、25×32的简便方法:
=25x(30+2)
=25x30+25x2
=750+50
=800
6、25×32的简便方法:
=(20+5)x(30+2)
=(20+5)x30+(20+5)x2
=600+150+40+10
=800
7、25×32的简便方法:
=(30-5)x32
=30x32-5x32
=960-160
=800
