Предмет: Математика, автор: ored222

сколько будет если 3км2 500м2 - 18а

Ответы

Автор ответа: ЧерныйБрат

1. 3 км²=3000м²
2. составим пропорцию:
3000м² - Х а
500м² - 18 а
Х=3000*18/500=108 а
Ответ: 108 а

ored222: как записать для 4-го класса

ЧерныйБрат: ну если вы проходили пропорции, то так и запиши

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