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Talking about people who play balloons during holidays.

Green ball of xiaolan: (10-4)÷2=3 (pieces),

Red balls: 10-4=6 (pieces);

Xiao Li green ball: [10-(-2)]÷2=6 (pieces),

Red balls: 10-6=4 (pieces);

A: So Xiaolan hit seven red balls and three green balls. Xiaoli hit four red balls and six green balls.