4.OA.4 Building Prime and Composite Numbers You will need: 24 color tiles/counters, grid paper, Building Prime and Composite Numbers table 1. Use the counters to make as many different arrays as you can for the number 24. 2. Draw your arrays on the grid paper. 3. Use your arrays to help you complete the Building Prime and Composite Numbers table. 4. Repeat with the number 11. 5. Repeat with three different numbers of your choice. Building Prime and Composite Numbers Number 24 11 Factors Number Prime or of Arrays Composite? How do you know?
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