Estimate metric measurements

Key Notes :

1. Understanding Estimation in Metric System

• Estimation means making a close guess based on known measurements.
• Helps in making quick calculations without exact measuring tools.

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2. Common Metric Units for Estimation

• Length: millimeter (mm), centimeter (cm), meter (m), kilometer (km)
• Mass (Weight): gram (g), kilogram (kg)
• Capacity (Volume): milliliter (mL), liter (L)

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3. How to Estimate Length

• 1 mm ≈ Thickness of a paper
• 1 cm ≈ Width of a fingernail
• 1 m ≈ Height of a chair
• 1 km ≈ Length of 10 football fields

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4. How to Estimate Mass (Weight)

• 1 g ≈ Weight of a paperclip
• 100 g ≈ A bar of soap
• 1 kg ≈ A bag of sugar
• 10 kg ≈ A small dog

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5. How to Estimate Capacity (Volume)

• 1 mL ≈ A drop of water
• 100 mL ≈ A small cup of juice
• 1 L ≈ A large water bottle
• 10 L ≈ A bucket of water

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6. Tips for Accurate Estimation

• Compare with familiar objects.
• Round off numbers for easy calculation.
• Use benchmarks (e.g., 1 meter ≈ height of a doorknob).
• Practice by estimating and then measuring.

Learn with an example

Let’s practice!🖊️