3+9=, 12, 13, 4+9=, 13, 14, 9+3=, 12, 13, 8+9=, 16, 17, 7+9=, 16, 15, 9+2=, 11, 12, 9+5=, 14, 13, 9+6=, 16, 15, 9+1=, 10, 11, 9+8=, 17, 16, 4+9=, 11, 13, 9+3=, 12, 13, 9+8=, 17, 16, 9+7=, 15, 16, 9+9=, 18, 17, 9 + 2 = ?, 12, 11, 10, 10 + 2 = ?, 12, 13, 11, 11 + 2 = ?, 14, 12, 13, 12 + 2 = ?, 13, 14, 15, 13 + 2 = ?, 15, 16, 14, 14 + 2 = ?, 17, 15, 16, 15 + 2 = ?, 18, 16, 17, 16 + 2 = ?, 19, 18, 17, 17 + 2 = ?, 19, 18, 20, 18 + 2 = ?, 21, 20, 19, 19 + 2 = ?, 21, 22, 20.

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