1) What is the missing number? 12, ___, 18, 21, 24 a) 9 b) 22 c) 15 2) What is the term-to-term rule? 16, 20, 24, 28, ___ a) add 4 b) add 32 c) add 3 3) What is the missing number? 24, ___, 30, 33 a) 25 b) 27 c) 22 4) What is the missing number? 32, 36, ____, 44 a) 40 b) 38 c) 42 5) What is the term-to-term rule? 21, ____, 27, ____, 33 a) add 24 b) add 3 c) add 30 6) What is the missing number? 12, ____, 4, 0 a) 6 b) 9 c) 8 7) What is the term-to-term rule? 36, ____, 28, ___, 20 a) add 4 b) add 24 c) add 32 8) What is the missing number? ___, 18, 15, 12 a) 24 b) 21 c) 27 9) What is the term-to-term rule? ___, 30, ___, 36 a) add 27 b) add 3 c) add 24 10) What is the term-to-term rule? 28, 32, ____, 40, 44 a) subtract 3 b) add 36 c) add 4

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