Year 4
Grade 3 (US) · ages 8–9
Convert Units of Length
Convert between millimetres, centimetres, metres and kilometres.
Year 4 · ages 8–9
Convert Grams and Kilograms
Sixteen conversions between grams and kilograms, including mixed amounts like 1 kg 500 g.
Year 4 · ages 8–9
Convert Millilitres and Litres
Convert between millilitres and litres, including mixed amounts such as 2 l 250 ml.
Year 4 · ages 8–9
Area of Rectangles
Six rectangles with length and width marked, to find the area by multiplying.
Year 4 · ages 8–9How to use these
A tip for measurement
Learn the three conversions, 10, 100 and 1000, and almost every metric question becomes multiplying or dividing by one of them.
More topics
Subtraction
Addition
Times Tables
Add and Subtract
Division
Mental Maths
Place Value
Fractions
Money
Decimals
Time
Practise on a screen with MathBase
The free-to-start maths app for ages 3–20, with games, lessons and a progress report for parents. No ads.