Предмет: Математика, автор: Аноним

Помогите пожалуйста

Задание 2

из чисел 153, 265, 368, 972, 332, 2340, 6309 выпишите все числа, которые:

а) делятся на 9 (14 баллов);

б) делятся на 2 и 10 (14 баллов);

в) делятся на 5 (14 баллов).

Обоснуйте своё решение, используя признаки делимости.
^ это обязательно ^

Ответы

Автор ответа: jixiolp

Ответ:

ответ на фото сверху, надеюсь помог

Приложения:

jixiolp: ну типо просто поделить на это число

jixiolp: ну если число делиться на то что сказано, значит оно подходит

froggy56: Там признак делимости нужно использовать

jixiolp: я вообще не шарю по рус, и незнаю как сделать, я сделал то что мог

Автор ответа: froggy56

Ответ:

Пошаговое объяснение:

а) 153, 972, 2340, 6309
Если сумма цифр делится на 9, то и все число делится на 9.

б) 2340
Если последняя цифра делится на 2, то и все число делится на 2. Если последняя цифра 0, все число делится на 10.

в) 265, 2340
Если последняя цифра делится на 5, то и все число делится на 5.

Некуда вставить: 368, 332

Надеюсь помогла)

froggy56: А, я не все заметила, сейчас дополню ответ--

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