Count by 2s: 2, 4, 6, 8, 10... Count by 5s: 5, 10, 15, 20... Count by 10s: 10, 20, 30, 40... These are number patterns. Pattern rule: add 2 each time. Adding 5 each time. Adding 10 each time. Skip-counting is a pattern! It helps in multiplication later.
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