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Use groups of 4.
Materials: 16 index cards, scissors
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Product Match-Up |
 Each player takes 4 index cards and is assigned 4 expressions from the list below. A player cuts each card in half, writing an expression on one part and the product on the other.
| Expressions to put on cards: |
0.2 × 0.4
0.3 × 1.2
0.01 × 0.01
1.5 × 0.2 |
0.05 × 0.5
0.1 × 2.5
0.9 × 4
0.3 × 10 |
2 × 0.8
0.1 × 0.01
0.6 × 0.05
1.6 × 0.01 |
0.4 × 0.4
2 × 0.4
0.1 × 0.1
0.18 × 0.2 |
After each player has each made 8 cards, shuffle all 32 cards together and arrange them facedown into a rectangle.
 The first player turns over two cards. If their values match, the player scores one point and turns over two more cards. If they do not match, the player turns the cards facedown again, no points are scored, and it becomes the next player's turn.
Players take turns until all cards are matched. The player with the most points wins.
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