小学奥数简便算法
(33221-332.21)÷(66442-664.42)
=33221(1-0.01)/66442(1-0.01)
=33221/66442
=33221/33221*2
=1/2
=0.5
(2002002+200.2002)÷(8008008+800.8008)
=2002002(1+0.0001)/8008008(1+0.0001)
=2002002/2002002*4
=1/4
=0.25
(1234+123.4-12.34)-(2468+246.8-24.68)
=1234(1+0.1-0.01)/2468(1+0.1-0.01)
=1234/1234*2
=1/2
=0.5