Combine addition and coloring with this simple learning exercise featuring a picture of a turtle. Learners color by number, but they must find the sum or difference of simple addition and subtraction problems to find each number. There are 13 problems to solve here, all involving sums or differences of five or lower. Make an overhead of this and display it once learners have all tried it on their own, coloring in each section as they call out the colors for you.