Упр.246 Рабочая тетрадь №1 ГДЗ Мерзляк Полонский 5 класс (Математика)
Заполните пропуски.
1) $$6\ \text{а} = \_\_\_\_\_\_\_\ \text{м}^2$$; 3) $$4\ \text{дм}^2 = \_\_\_\_\_\_\ \text{см}^2$$; $$12\ \text{га} = \_\_\_\_\_\_\ \text{м}^2$$; $$4\ \text{м}^2 = \_\_\_\_\_\_\ \text{см}^2$$; $$3\ \text{га}\ 42\ \text{а} = \_\_\_\_\_\_\ \text{м}^2$$; $$2\ \text{м}^2\ 35\ \text{дм}^2 = \_\_\_\_\_\_\_\ \text{см}^2$$; 2) $$7\ \text{га} = \_\_\_\_\_\_\_\ \text{а}$$; 4) $$270\,000\ \text{м}^2 = \_\_\_\_\_\_\_\_\ \text{га}$$; $$6\ \text{га}\ 5\ \text{а} = \_\_\_\_\_\_\ \text{а}$$; $$8\,000\ \text{а} = \_\_\_\_\_\_\_\_\_\ \text{га}$$; $$72\,000\ \text{м}^2 = \_\_\_\_\_\_\ \text{а}$$; $$2\ \text{км}^2 = \_\_\_\_\_\_\_\_\_\ \text{га}$$.
Используем соотношения:
- $$1\ \text{а} = 100\ \text{м}^2$$
- $$1\ \text{га} = 100\ \text{а} = 10\,000\ \text{м}^2$$
- $$1\ \text{м}^2 = 100\ \text{дм}^2 = 10\,000\ \text{см}^2$$
- $$1\ \text{дм}^2 = 100\ \text{см}^2$$
Тогда:
$$6\ \text{а} = 600\ \text{м}^2$$
$$12\ \text{га} = 120\,000\ \text{м}^2$$
$$3\ \text{га}\ 42\ \text{а} = 30\,000\ \text{м}^2 + 4\,200\ \text{м}^2 = 34\,200\ \text{м}^2$$
$$7\ \text{га} = 700\ \text{а}$$
$$6\ \text{га}\ 5\ \text{а} = 600\ \text{а} + 5\ \text{а} = 605\ \text{а}$$
$$72\,000\ \text{м}^2 = 720\ \text{а}$$
$$4\ \text{дм}^2 = 400\ \text{см}^2$$
$$4\ \text{м}^2 = 40\,000\ \text{см}^2$$
$$2\ \text{м}^2\ 35\ \text{дм}^2 = 20\,000\ \text{см}^2 + 3\,500\ \text{см}^2 = 23\,500\ \text{см}^2$$
$$270\,000\ \text{м}^2 = 27\ \text{га}$$
$$8\,000\ \text{а} = 80\ \text{га}$$
$$2\ \text{км}^2 = 200\ \text{га}$$
