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

Maths

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