Convert and compare metric units

Key Notes :

1. Understanding Metric Units:

• The metric system is a decimal-based system of measurement.
• Common metric units include:
  • Length: millimeter (mm), centimeter (cm), meter (m), kilometer (km)
  • Mass: milligram (mg), gram (g), kilogram (kg)
  • Volume: milliliter (mL), liter (L)
  • Temperature: degrees Celsius (°C)

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2. Conversion Between Metric Units:

• Metric units are based on powers of 10, so converting between them is easy.
• To convert to a larger unit (e.g., cm to m):
  • Divide by 10, 100, 1000, etc., depending on the difference in size.
  • Example: 100 cm = 1 m (divide by 100)
• To convert to a smaller unit (e.g., km to m):
  • Multiply by 10, 100, 1000, etc.
  • Example: 5 km = 5000 m (multiply by 1000)

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3. Conversion Table for Quick Reference:

• Length:
  • 1 kilometer (km) = 1000 meters (m)
  • 1 meter (m) = 100 centimeters (cm)
  • 1 centimeter (cm) = 10 millimeters (mm)
• Mass:
  • 1 kilogram (kg) = 1000 grams (g)
  • 1 gram (g) = 1000 milligrams (mg)
• Volume:
  • 1 liter (L) = 1000 milliliters (mL)

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4. Converting Length:

• Example: Convert 5000 millimeters (mm) to meters (m):
  • 5000 mm ÷ 1000 = 5 meters (m)

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5. Converting Mass:

• Example: Convert 2.5 kilograms (kg) to grams (g):
  • 2.5 kg × 1000 = 2500 grams (g)

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6. Converting Volume:

• Example: Convert 350 milliliters (mL) to liters (L):
  • 350 mL ÷ 1000 = 0.35 liters (L)

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7. Comparing Metric Units:

• Length: Larger units like kilometers (km) are used for measuring distances (e.g., between cities), while smaller units like millimeters (mm) are used for measuring very small objects.
• Mass: Kilograms (kg) are used for heavy objects, while milligrams (mg) are used for tiny weights, like a grain of salt.
• Volume: Liters (L) are used for liquids like water, while milliliters (mL) are used for small amounts of liquid (like a spoonful).

Learn with an example

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