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Ознаки подільності

Пригадаємо ознаки подільності на 2, 3, 5, 9,10

QuestionAnswer
Якщо число закінчується 0 то завжи ділиться На 10 і 5 і 2 На 10 і 5
Якщо сума цифр ділиться на 9 то число завжди ділиться На 3 і 9 На 9
Якщо сума цифр ділиться на 3 то число завжди ділиться На 3 На 9
Якщо число закінчується 0 або 5 то завжи ділиться На 5 На 5 і 3
Парні числа завжди діляться На 2 На 2 і 5
Created by: 1158391997615439
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