Question

Сколько метров в 9 км? в 900 дм? в 9000 см? Сколько квадратных метров в 400 квадратных дм? и 8 квадратных км?

Answer 1

1 км = 1000 м
1 м = 10 дм
1 м = 100 см

Отсюда:
9 км = 9 * 1000 м = 9000 м

900 дм = 900/10 м = 90 м

9000 см = 9000/100 м = 90 м

1 м² = 100 дм²
1 км² = 1000000 м² = 10⁶ м²

Отсюда:
400 дм² = 400/100 м² = 4 м²

8 км² = 8 * 1000000 м² = 8000000 м² = 8*10⁶ м²

Answer 2

Conversion of Kilometers, Decimeters, and Centimeters

To convert kilometers (km) to meters (m), we multiply the value in kilometers by 1000, since there are 1000 meters in 1 kilometer. Therefore, 9 kilometers is equal to 9000 meters.

To convert decimeters (dm) to meters (m), we divide the value in decimeters by 10, since there are 10 decimeters in 1 meter. Therefore, 900 decimeters is equal to 90 meters.

To convert centimeters (cm) to meters (m), we divide the value in centimeters by 100, since there are 100 centimeters in 1 meter. Therefore, 9000 centimeters is equal to 90 meters.

Conversion of Square Meters, Square Decimeters, and Square Kilometers

To convert square decimeters (dm²) to square meters (m²), we divide the value in square decimeters by 100, since there are 100 square decimeters in 1 square meter. Therefore, 400 square decimeters is equal to 4 square meters.

To convert square kilometers (km²) to square meters (m²), we multiply the value in square kilometers by 1,000,000, since there are 1,000,000 square meters in 1 square kilometer. Therefore, 8 square kilometers is equal to 8,000,000 square meters.

I hope this helps! Let me know if you have any other questions.