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6666x6666简便方法

6666x6666 =39996000+3999600+399960+39996 =40000000+4000000+400000+40000-4000-400-40-4 =44440000-4444 =44435556

1、解:21136666*52616666=2*3333*3*2222=2*2222*3*3333=4444*9999=4444*(10000-1)=4444*10000-4444=44440000-4444=444355562、解4102:6666x6666=165339996000+3999600+399960+39996=40000000+4000000+400000+40000-4000-400-40-4=44440000-4444=44435556

6666x6666=39996000+3999600+399960+39996=40000000+4000000+400000+40000-4000-400-40-4=44440000-4444=44435556

6666x6666 = (6000+600+60+6)(6000+600+60+6)=36000000+3600000+360000+36000+3600000+360000+36000+3600+360000+36000+3600+360+36000+3600+360+36=30000000+6000000+3000000+600000+300000+60000+30000+6000

6666*6666 =6*1111*6*11111 =36*1234321

6666*6666=6*6*1111*1111=36*1111*1111=39996*1111=(40000-4)*1111=40000*1111-4*1111=44440000-4444=44435556

1、解:du6666*zhi6666=2*dao3333*3*2222=2*2222*3*3333=4444*9999=4444*(10000-1)=4444*10000-4444=44440000-4444=444355562、解回:6666x6666=答39996000+3999600+399960+39996=40000000+4000000+400000+40000-4000-400-40-4=44440000-4444=44435556

解:采用拆分法和分配律,6666X6666=6666x(6000+600+60+6)=6666x6000+6666x600+6666x60+6666x6=39996000+3999600+399960+39996=43995600+439956=44435556

=6666*6*1111=39996*1111=39996+399960+3999600+39996000

6666*6666:1*1=111*11=121111*111=12321 所以能够得到规律,可知1111*1111=12343216666*6666=1234321*36=44435556

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