简便计算:(2.008+20.08+200.8+2008)X2008
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简便计算:(2.008+20.08+200.8+2008)X2008简便计算:(2.008+20.08+200.8+2008)X2008简便计算:(2.008+20.08+200.8+2008)X20
简便计算:(2.008+20.08+200.8+2008)X2008
简便计算:(2.008+20.08+200.8+2008)X2008
简便计算:(2.008+20.08+200.8+2008)X2008
=(2008/1000+2008/100+2008/10+2008)X2008
=2008x2008x(1/1000+1/100+1/10+1)
=2008^2x1111/1000
=(2000+8)x(2000+8)x1.111
=(2000x2000+2x2000x8+8x8)x1.111
=(4000000+32000+64)x1.111
=4x(1000000+8000+16)x1.111
=4.444x(1000000+8x(1000+2))
=4444000+35.552x(1000+2)
=4444000+35552+71.104
=4479623.104
使用计算器，人算不如机器算
=（2222+8.888）*（2000+8）=（2230+0.888）*（2000+8）=2230*2000+2230*8+0.888*2000+0.888*8=4460000+17840+1776+7.104=4479623.104