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Grade 5 · Math · Unit 10 of 13

Millimetres, Volume and Capacity

mm, cm³, m³, mL and L

What your child practises

Choosing units for length (mm), volume (cm³, m³) and capacity (mL, L), using everyday referents, and linking millilitres to litres.

Nunavut Curriculum approved guide: Alberta Mathematics K–9 (2007), Shape and Space · measuring in millimetres, volume in cubic units, and capacity in mL and L

How we explain it

Children can open this short lesson before they practise.

  1. There are 10 millimetres in 1 centimetre.
  2. Volume counts cubic units. Capacity is how much a container holds, in mL and L.
  3. 1 L is 1000 mL.

Example: A jug holds 2.5 L. How many millilitres is that? 1 L = 1000 mL. 2.5 × 1000 = 2500. Answer: 2500 mL

Sample questions

A taste of this unit. In the app, questions change every time and get easier or harder to match your child.

  1. Question 1

    Which is about 5 mL?

    • a bathtub of water
    • a jug of milk
    • a teaspoon of medicine

  2. Question 2

    Which is the better unit for the volume of a small dice?

    • cubic centimetre (cm³)
    • cubic metre (m³)
    • litre (L)

  3. Question 3

    A box is 3 cubes long, 2 wide and 2 high. How many cubes fill it?

    • 10
    • 7
    • 12

  4. Question 4

    A box holds 2 layers of 6 cubes. What is its volume in cubes?

    • 12
    • 8
    • 6

  5. Question 5

    Which is about 1 L?

    • a teaspoon
    • a carton of milk
    • a rain barrel

  6. Question 6

    1.5 L is the same as…

    • 150 mL
    • 15 mL
    • 1 500 mL

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