1) 9 + 8 = ? a) 18 b) 17 c) 16 2) 15 – 6 = ? a) 8 b) 9 c) 11 d) 7 3) 11 + 7 = ? a) 19 b) 18 c) 17 d) 20 4) 12 – 9 = ? a) 4 b) 5 c) 3 d) 2 5) 18 - ? = 9 a) 8 b) 7 c) 6 d) 9

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