Stack UP! with multi step equations is great for review. It comes with directions, game board, and cards. The cards come in 2 colors for 2 players or you can copy them on 2 different colors.
Both players flip over cards and solve the equation. The first one to stack their card on the correct answer wins a point and play continues.
At the end, both players should have the same cards on the same correct answers. If they do not students will need to check their work.