简便计算题:99999×77778+33333×66666,

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简便计算题:99999×77778+33333×66666,

99999×77778+33333×66666
=99999×77778+33333×3×22222
=99999×(77778+22222)
=99999×100000
=9999900000

518511851829630

99999×77778+33333×66666
=99999×77778+99999×22222
=99999×(77778+22222)
=99999×100000
=9999900000

99999×77778+33333×66666
=99999×77778+33333×3x22222
=99999x(77778+22222)
=99999x100000
=9999900000