99999乘以999999越快越好!

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99999乘以999999越快越好!99999乘以999999越快越好!99999乘以999999越快越好!999999*1000000－999999＝999999000000－999999＝9999

99999乘以999999越快越好!
99999乘以999999
越快越好!

99999乘以999999越快越好!
999999*1000000－999999
＝999999000000－999999
＝999998000001

1楼回答正确

99999*999999=99999*(1000000-1)=99999000000-99999=99998900001

=99999*(1000000-1)
=99999*1000000-99999
=999999000000－999999
＝999998000001

99999*99999
=99999*(100000-1)
=999999*1000000－999999
＝999999000000－999999
＝999998000001

99999*999999
=99999*1000000-999999
=99999000000-999999
=999998000001

99999*99999
=99999*(100000-1)
=999999*1000000－999999
＝999999000000－999999
＝999998000001

99999*999999
=(100000-1)*999999
=999999*100000-999999
=99999900000-1000000+1
=99998900000+1
=99998900001
都是些傻儿,讲速度,上面的都是些人材啦!!!

99999*999999
=(100000-1)*(1000000-1)
=100000000000-1000000-100000+1
=999998000001

999999×999999
=(1000000-1)×(1000000-1)
=1000000×1000000-2×1000000+1
=

99999*99999=(1000000-1)^2=1000000^2-2*1000000+1=99998900001

999998000001

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