Hang each problem up around your room and have students visit each one. After solving one problem, have them come back to the teacher for checking. Then students can continue to the next problem. I usually let them choose where they want to start, but I assign different problems for different groups for differentiation. Green background (3 problems) is below grade level. Yellow background (8 problems) is on grade level. Red background (5 problems) is above grade level just because they are mostly two step problems. If the below grade level group finishes the 3 practice problems, have them try the on grade level problems with partners. My students love getting out of their seats and reviewing this way.