1) 5, ___ , 15, 20, 25 a) 15 b) 10 c) 8 2) ___ , 8, 10, 12, 14 a) 2 b) 4 c) 6 3) 10, 20, 30, ___ , 50, 60 a) 40 b) 50 c) 70 4) 2, 4, 6, 8, 10, ___ a) 11 b) 12 c) 20 5) 30, 40, 50, 60, 70, 80. This is counting by ___. a) 5s b) 2s c) 10s 6) 12, 22, 32, 42, 52, 62. This is counting by ____. a) 10s b) 2s c) 5s 7) 10, 9, 8, 7, 6, 5, 4, 3, 2, 1. This is counting _____. a) in circles b) backwards c) forwards 8) 25, 30, 35, ___ , 45, 50 a) 40 b) 30 c) 55 9) 70, ___ , 90, 100, 110 a) 60 b) 80 c) 75 10) ___ , 20, 25, 30, 35, 40 a) 10 b) 15 c) 19 11) 22, 24, ___ , 28, 30, 32 a) 26 b) 24 c) 25 12) 100, 90, 80, 70, ___ , 50, 40 a) 20 b) 50 c) 60

Counting: Find the missing number.

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