11 + 6 - 17, 10 + 8 - 18, 3 + 12 - 15, 14 + 2 - 16, 9 + 4 - 13, 10 + 4 - 14, 14 + 3 - 17, 12 + 3 - 15, 11 + 6 - 17, 18 + 1 - 19, 10+5 - 15, 11+2 - 13, 11+4 - 15, 13+4 - 17, 19+1 - 20, 6+10 - 16, 12+5 - 17, 15+5 - 20, 16+3 - 19, 17+3 - 20,

Addition Up to 20

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