1) 12, ___, 32, 42, 52, 62 a) 13 b) 22 c) 21 2) 137+10 a) 147 b) 127 c) 138 3) 83-10 a) 93 b) 73 c) 82 4) 14+10 a) 44 b) 15 c) 24 5) 125+10 a) 135 b) 126 c) 120 6) 159-10 a) 140 b) 149 c) 169 7) 44+10 a) 55 b) 440 c) 54 8) 112-10 a) 92 b) 102 c) 122 9) 16-10 a) 6 b) 10 c) 16 10) 76, 66, 56, 46, ___ a) 26 b) 40 c) 36 11) Counting by 10s, fill in the blanks: ____, 49, ____, ____, 79 a) 39, 49, 59, 69, 79 b) 40, 49, 59, 69, 79 c) 29, 49, 59, 69, 79 12) 71, ____, ____, , 41, 31 a) 71, 60, 50, 41, 31 b) 71, 61, 51, 41, 31 c) 71, 81, 91, 41, 31 13) Counting by 10s, fill in the blanks: ____, ____, ____, ____, 57 a) 17, 27, 37, 47, 57 b) 53, 54, 55, 56, 57 c) 37, 40, 47, 50, 57 14) 173+10 a) 183 b) 193 c) 163 15) 100+10 a) 120 b) 110 c) 101

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