32 Cards for students to match by finding their products, making 16 pairs total. This activity includes multiplying integers with negatives and positives. I use this in my pre-algebra class which is aligned with 7th Grade Savvas Envisions, so it could definitely be used in middle school too! Great start of lesson or ending; I like to let my students work in pairs at whiteboards while they match their cards. Tip: Print copies on different colors of paper to keep sets separate.