753*999简便运算

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753*999简便运算

753*999简便运算
753*999简便运算

753*999简便运算
753×999
=753×(1000-1)
=753×1000-753×1
=753000-753
=752247

=753(1000-1)
=753×1000-753
=753000-753
=752247

=753*(1000-1)
=753*1000-753*1
=753000-753
=752247

753*999
=753*(1000-1)
=753000-753
=752247

753*(1000-1)=753000-753=752247

答:753*999简便运算
753*(1000-1)
=753000-753
=752247