Правильно: 17+2=19, 11-6=5, 16-7=9, 9+5=14, 13-8=5, 5+9=14, 15-7=8, 8+8=16, 17-8=9, 11-2=9, 12-8=4, 5+7=12, 14-9=5, 7+7=14, 16-8=8, Неправильно: 17+2=18, 11-6=7, 16-7=8, 9+5=13, 13-8=6, 5+9=13, 15-7=7, 8+8=17, 17-8=8, 11-2=8, 12-8=5, 5+7=13, 14-9=6, 7+7=15, 16-8=9,

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