3755+2996(要简便计算)

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3755+2996(要简便计算)

3755+2996(要简便计算)
3755+2996(要简便计算)

3755+2996(要简便计算)
3755+2996
=(3751+4)+2996
=3751+(4+2996)
=3751+3000
=6751
多谢了!

3755+3000-4

3755+3000-4=6751

3755+2996
=3755+3000-4
=6755-4
=6751

3755+3000-4=6755-4=6751

3755+2996=3755-4+4+2996=(3755-4)+(4+2996)=3751+3000=6751

3755余4给2996
等于3751+3000=?

3755+[2996+4]-4
=3755+3000-4
=6755-4
=6751