Math 1 and 2_Counting On and Back

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Counting on by 2s. What are the missing numbers? 9, 11, 13, ______, _____, 19, 21

15, 17

Counting on by 3s. What is the missing number? 11, 14, _____, _____, 23, 26

17, 20

Counting on by 4s: 20, 24, 28, _____, 36

32

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