18-9 - 9, 17-9 - 8, 16-9 - 7, 15-9 - 6, 14-9 - 5, 13-9 - 4, 12-9 - 3, 11-9 - 2, 17-8 - 9, 16-8 - 8, 15-8 - 7, 14-8 - 6, 13-8 - 5, 12-8 - 4, 11-8 - 3, 16-7 - 9, 15-7 - 8, 14-7 - 7, 13-7 - 6, 12-7 - 5, 11-7 - 4, 15-6 - 9, 14-6 - 8, 13-6 - 7, 12-6 - 6, 11-6 - 5, 14-5 - 9, 13-5 - 8, 12-5 - 7, 11-5 - 6, 13-4 - 9, 12-4 - 8, 11-4 - 7, 12-3 - 9, 11-3 - 8, 11-2 - 9,
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Таблиця віднімання в межах 20
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