Question

4,2мм=?м 45,21дм=?М 0,54см=?м 7,2=?м

Answer 1

4,2мм=0,0042м 45,21дм=4,521м 0,54см=0,0054м 7,2=7,2

Answer 2

I can help you with your math question. Here is the detailed answer:

To convert millimeters (mm) to meters (m), you need to divide by 1000, because 1 m = 1000 mm. Therefore:

$$4.2 \text{ mm} = \frac{4.2}{1000} \text{ m} = 0.0042 \text{ m}$$

To convert decimeters (dm) to meters (m), you need to divide by 10, because 1 m = 10 dm. Therefore:

$$45.21 \text{ dm} = \frac{45.21}{10} \text{ m} = 4.521 \text{ m}$$

To convert centimeters (cm) to meters (m), you need to divide by 100, because 1 m = 100 cm. Therefore:

$$0.54 \text{ cm} = \frac{0.54}{100} \text{ m} = 0.0054 \text{ m}$$

To convert kilometers (km) to meters (m), you need to multiply by 1000, because 1 km = 1000 m. Therefore:

$$7.2 \text{ km} = 7.2 \times 1000 \text{ m} = 7200 \text{ m}$$

I hope this helps. If you want to learn more, you can check out these websites:

- [4,2мм=?м 45,21дм=?М 0,54см=?м 7,2=?м - ответ на Uchi.ru](https://uchi.ru/otvety/questions/42mm-m-4521dm-m-054sm-m-72-m) - [Ответы: Выразить в метрах 4,2мм 45,21дм 0,54см 7,2км...](https://online-otvet.ru/matematika/5cea8c4b96f4e19a292ddc02) - [Ответы: Вырази в метрах 4,2мм 45,21дм 0,54см 7,2км...](https://online-otvet.ru/matematika/5cea8b8396f4e19a292c463e)