17-4 - 13, 19-12 - 7, 20-8 - 12, 10-6 - 4, 13-10 - 3, 11-5 - 6, 9-4 - 5, 15-9 - 6, 17-6 - 11, 16-8 - 8, 12-6 - 6, 14-7 - 7, 13-9 - 4, 7-2 - 5, 9-2 - 7,

Maths Subtraction Quiz to 20

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