Color scraps Classification

This is a game of Color scraps Classification.The functions are:
1.（The sum of numbers represented by the cards in the blue basket）+（The sum of numbers represented by the cards in the pink basket）+（The sum of numbers represented by the cards in the green basket）= ？
2.What is the sum of the number represented by the left card and the number in the middle?
3.Recognize the number represented in card picture