Year 4 Measurement
Convert between metric units; calculate area and perimeter of rectangles; read analogue and digital clocks.
Try the worked examples below, then start an adaptive session that adjusts to your level.
Worked examples
Read the time: 14:35. What time is this in 12-hour form?
- 2:35 PM
- 4:35 PM
- 1:35 PM
- 14:35 PM
Answer: 2:35 PM. After 12:00, subtract 12 to get the PM hour. 14 − 12 = 2 → 2:35 PM.
Read the scale: a measuring jug shows water at the mark between 200 ml and 300 ml. There are 2 unmarked ticks between them. The water is on the SECOND tick. How much water?
- 266 ml (≈ 267)
- 230 ml
- 250 ml
- 270 ml
Answer: 266 ml (≈ 267). Between 200 and 300 with 2 ticks → ticks at 233 and 267. Water on second = ~267 ml.
Why does the formula A = L × W give cm² as the unit (not cm)?
- Because we multiply length × length — each in cm — and cm × cm = cm² (square centimetres).
- Because the answer is bigger than length.
- Because two-digit numbers always have squared units.
- Because the question said so.
Answer: Because we multiply length × length — each in cm — and cm × cm = cm² (square centimetres).. Multiplying cm × cm gives cm² — square centimetres — because we're measuring area.
Skills in this topic
Frequently asked questions
- What is covered in Year 4 Measurement?
- Convert between metric units; calculate area and perimeter of rectangles; read analogue and digital clocks. Key skills include Unit Conversion, Perimeter, Area.
Practise this adaptively
Start a free session that adjusts to your child's level, tracks mastery and celebrates progress.
Start free