Looking to help your students practice those addition skills of 2 and 3 addends? Here are 11 print and go math center activities to help students with their math fluency addition facts. Students will take turns finding two or three numbers that equal the target number. Target numbers on the page go from 10 to 20. When students find two or three addends that equal the target number, they color the squares. The last student to be able to make the target number wins!