This is staging, where changes are checked before they go live. The real site is app.dumdummaths.com.

DumDum Maths
Spring term

Number bonds to 20 — the missing part

Core — a statutory requirement of the National Curriculum

Your child does this with a part-whole model — the whole above, its parts below.

Try it — this is the real question.

20 altogether. How many are hiding?

20altogether

← All Year 1 skills