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Metric Imperial Unit Conversions

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Metric Imperial Unit Conversions

📏 Part 1: Basic Conversions

Key conversion factors: 1 inch = 2.54 cm • 1 pound = 0.4536 kg • 1 pint = 0.568 litres

1. Convert 10 inches to centimetres.

10 × 2.54 = _______ cm

2. Convert 3 kg to pounds.

3 ÷ 0.4536 = _______ pounds

3. Convert 2 pints to litres.

2 × 0.568 = _______ litres

4. Which is longer?

15 cm

6 inches

They are the same

5. A recipe needs 500ml of milk. How many pints is this? (Round to 1 decimal place)

📊 Part 2: Using Conversion Graphs

Use the conversion graph provided by your teacher to answer these questions.

6. Using the length conversion graph, find how many centimetres equal 8 inches.

8 inches = _______ cm

7. A parcel weighs 2.5 kg. Use the weight conversion graph to find this in pounds.

2.5 kg = _______ pounds

8. Which method do you prefer for conversions: using conversion factors or graphs? Explain why.

🧮 Part 3: Real-Life Problems

9. Sarah is 5 feet 6 inches tall. Convert her height to centimetres. (Remember: 1 foot = 12 inches)
10. A shop sells apples at £2.50 per pound. How much would 2 kg of apples cost?
11. Extension: A car's fuel tank holds 45 litres. If petrol is sold by the gallon (1 gallon = 4.546 litres), how many gallons does the tank hold? A garage also sells by the pint - how many pints would fill the tank?
12. Reflect: Where might you use metric and imperial conversions in everyday life? Give two examples.

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