Lengths
Lengths helps children practise practising lengths with grade-2 arithmetic tasks. Read the short guide, solve one browser task, and print a fresh worksheet when more repetition is useful.
How to solve this
- Read the lengths task carefully and underline the numbers you already know.
- Keep the unit with the number. Add or subtract centimetres with centimetres and metres with metres.
- After solving, check whether the answer fits the number range and the question.
Examples
35 cm + 20 cm = ?
55 cm
1 m = ?
100 cm
What children practice
- Lengths
- using cm and m
- comparing lengths
- solving short length problems
Practice online
Try one short exercise in the browser.
Printable worksheet
Create a fresh printable worksheet with an answer key for extra practice on paper.
Related topics
FAQ
What should children know before lengths?
It helps if children are comfortable with adding and subtracting numbers to 100.
What can we do if lengths feels hard?
Keep the unit with the number. Add or subtract centimetres with centimetres and metres with metres.
How much practice is enough?
A focused round of 5 to 10 minutes is usually enough for second graders. Stop while the child can still explain one step clearly.