Rattle-drum color select count

This is a game of Rattle-drum color select count.
1.Count out the number of all the specified color Rattle-drums. Then add two numbers on white background. What is the final result?
2.Observe the color of the Rattle-drums and circles. Which color appears the most frequently?
3.Find the sum of all specified color numbers in the matrix. Then add the numbers of the two Rattle-drums in the middle. What is the result?
4.Enter values in six input boxes so that the sum of the values in the six input boxes is equal to the sum of the numbers below