Exam PrepYears 2–6Mental Maths Speed

Number bonds speed drill (to 100)

Rapid recall of number bonds to 10, 20, 50 and 100 within 30 seconds per question

What you'll learn

  1. 1

    Imagine you have 100 pence in your piggy bank 🐷. You break it into two piles — one pile is 60p, the other pile is 40p. Together they make 100p!

  2. 2

    What goes with 30 to make 100?

  3. 3

    Tap two numbers that add up to 100.

  4. 4

    Let's find the number bond to 100 for 45.

  5. 5

    What number makes 100 with 70?

  6. 6

    Now try to make 100 with 80 — find the missing part.

  7. 7

    What is the missing number: 36 + ? = 100

Practise Number bonds speed drill (to 100) with Whizlo

Free AI-tutored lessons, unlimited practice questions, and progress tracking for ages 6–11. Aligned to the UK National Curriculum.