Предмет: Математика, автор: oi3654545

1.

Обчисли

666 : 9 · 5 =

224 : 32 =

(320 : 40 + 333 : 9) · 8 =



756 : 9 · 7 =

128 : 32 =

(240 : 40 + 666 : 9) · 8 =

2. Виконай дії

14 год 1 хв - 5 хв

200 км 6 м - 60 м



44 хв 2 с - 8 с

120 км 8 м - 40 м

3. Розв’яжи задачу

У мами було 520 грн. Після покупки 15 доларів у мами залишилася четвертина усіх гривень. Скільки коштував

1 долар?



У тата було 468 грн. Після покупки 12 доларів у тата залишилася третина усіх гривень. Скільки коштував

1 долар?

4. Розв’яжи задачу



Щоб засіяти соняшником прямокутну ділянку довжиною 3 м і шириною 3 м, потрібно 9г соняшнику. Скільки соняшника потрібно, щоб засіяти ділянку, яка має площу 3096 м2, при тій же нормі висіву?

Норма висіву соняшника 4 г на ділянку квадратної форми зі стороною 2 м. Скільки соняшнику потрібно, щоб засіяти прямокутну ділянку довжиною 82 м і шириною 68 м? Розв’яжи задачу двома способами.
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Ответы

Автор ответа: sabrinaswx
1

Ответ:

5 балов это оч мало для такого хотя я и в 7 классе. будет 35-40 балов я решу тебе это

Автор ответа: 1alinaskolova1
1

Пошаговое объяснение:

за 50 балів скажу відповіді на все а зараз тільки на 3. 1 долар буде 26

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