方法如下:
3333*3*1111
=9999*1111
=(10000-1)*1111
=11110000-1111
=11108889
3333*3333=9*1111*1111=9*1234321=11108889
3333×3333
=1111×3×3333
=1111×9999
=1111×(10000-1)
=1111×10000-1111×1
解:
3333x3333
=3333x3000+3333x300+3333x30+3333x3
=9999000+999900+99990+9999
=3333*3*1111
=11108999
3333乘以3333
=供浮垛簧艹毫訛桐番昆9999*1111
=10000*1111-1111
方法如下:
3333*3*1111
=9999*1111
=(10000-1)*1111
=11110000-1111
=11108889
3333*3333=9*1111*1111=9*1234321=11108889
3333×3333
=1111×3×3333
=1111×9999
=1111×(10000-1)
=1111×10000-1111×1
=11110000-1111
=11108889
解:
3333x3333
=3333x3000+3333x300+3333x30+3333x3
=9999000+999900+99990+9999
=11108889
=3333*3*1111
=9999*1111
=(10000-1)*1111
=11110000-1111
=11108999
3333乘以3333
=3333*3*1111
=供浮垛簧艹毫訛桐番昆9999*1111
=(10000-1)*1111
=10000*1111-1111
=11110000-1111
=11108889