📏 Part 1: Understanding Metric Units

a) What is the base unit for length in the metric system?

b) How many centimetres are in 1 metre?

c) How many millimetres are in 1 metre?

🔄 Part 2: Basic Conversions

a) 3 metres = _______ centimetres

b) 250 centimetres = _______ metres

c) 5000 millimetres = _______ metres

d) 1.5 metres = _______ centimetres

e) 75 centimetres = _______ millimetres

📐 Part 3: Real-World Applications

a) The length of a pencil:

b) The height of a classroom door:

c) The thickness of a coin:

a) Sarah's desk is 1.2 metres long. How many centimetres is this?

b) A piece of ribbon is 850 millimetres long. How many centimetres is this?

c) The school playground is 45 metres wide. Express this in millimetres.

🎯 Part 4: Estimation and Benchmarks

a) My arm span is approximately _______ centimetres or _______ metre(s).

b) The width of my thumb is about _______ millimetres or _______ centimetre(s).

c) The length of my classroom is approximately _______ metres.

d) A standard door is about _______ metres tall and _______ centimetres wide.

🧠 Part 5: Challenge Questions

a) Convert 2.75 metres to millimetres:

b) Convert 4500 millimetres to metres (express as a decimal):

Tom has three pieces of wood: 125 cm, 0.8 m, and 950 mm. What is the total length in metres?

Why is it important to choose the right unit when measuring length? Give an example.