Millimetres as a unit of measure and the relationship between them and cm | Maths

Starter quiz

I have a piece of ribbon that is 80 cm long. Is this ribbon shorter or longer than one metre?
- longer
- shorter ✓
Which unit would you use to measure the length of a swimming pool?
- mm
- cm
- m ✓
- kg
Match the calculation to its answer.
- 1 x 10 =
  
  ⇔
  
  10 ✓
- 8 x 10 =
  
  ⇔
  
  80 ✓
- 10 x 5 =
  
  ⇔
  
  50 ✓
- 60 =
  
  ⇔
  
  6 x 10 ✓
- 20 =
  
  ⇔
  
  10 x 2 ✓
- 100 =
  
  ⇔
  
  10 x 10 ✓
What is the length of this leaf?
- '4 cm' ✓
If one metre is equal to 100 cm, how many cm are 6 metres equal to?
- '600 cm' ✓
Convert the height of this house from centimetres to metres.
- 800 m
- 80 m
- 8 m ✓