简便运算:3755+2996

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简便运算:3755+2996简便运算:3755+2996简便运算:3755+29963755+2996=3755+3000-4=6755-4=67513755+3000-4=6755-4=675137

简便运算:3755+2996
简便运算:3755+2996

简便运算:3755+2996
3755+2996
=3755+3000-4
=6755-4
=6751

3755+3000-4
=6755-4
=6751

3755+3000-4=6751

3755+2996
=(3000+755)+(3000-4)
=(3000+3000)+(755-4)
= 6000+751
= 6751