Answer:
See below
Explanation:
Make two columns.
Divide each number on the left by 2 and ignore the remainders. Take the number on the right and multiply by 2. You want the column on the right to be the same number of steps as the column on the left. Look at the numbers on the left and cross out any answers that are even. Add the numbers on the left that have not been crossed out. This is your solution.