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Step-by-step practice Maths textbook

Chapter 4: Number bonds to 20

  • Strand Number bonds
  • Level Level 2
  • Practice 82 questions with step-by-step solutions

Step-by-step practice: maths (Level 2). Small steps, repeated until fluent. Content: Recall the pairs of numbers that make 20, Use bonds to 10 to find bonds to 20, Find missing parts in a part-whole picture with a whole of 20, Write the related addition and subtraction facts for each bond to 20.

Open Level 2 chapter

By the end of this chapter you will be able to

  • Say the pairs that make 20
  • Use bonds to 10 to help find bonds to 20
  • Find missing parts in part-whole pictures
  • Write related facts for a bond to 20

You should already know

  • Number bonds to 10 (Level 1)
  • Counting to 100 (Level 2, Chapter 1)

Where this leads

  • Adding within 20 (Chapter 5)
  • Taking away within 20 (Chapter 6)

Lessons in this chapter

  1. 4.1 Pairs that make 20
  2. 4.2 Using bonds to 10 to find bonds to 20
  3. 4.3 Missing parts in bonds to 20
  4. 4.4 Related facts for a bond to 20
  5. Summary and key words
  6. Check-up and practice test questions

Read the whole chapter on one page (good for printing).