KS1 Maths textbook

Chapter 2: Adding and subtracting

Strand Number: addition and subtraction
Level Year 2
Practice 92 questions with step-by-step solutions

National Curriculum for England, Key Stage 1 mathematics, Year 2. Content: Recall and use addition and subtraction facts to 20 fluently, Derive and use related addition and subtraction facts up to 100, Add and subtract a two-digit number and ones, Add and subtract a two-digit number and tens, Add and subtract two two-digit numbers, Add three one-digit numbers, Show that addition can be done in any order and subtraction cannot, Use the inverse to check calculations and solve missing number problems, Solve problems with addition and subtraction using objects, pictures and written methods.

Open Year 2 chapter

By the end of this chapter you will be able to

Know the facts to 20, and use them to find related facts up to 100
Add and take away ones, and tens, from a two-digit number
Add and subtract two two-digit numbers, using a written method
Add three one-digit numbers, looking for two that make 10 first
Use the inverse to check an answer, and find a missing number
Solve word problems by adding or taking away

You should already know

Adding and taking away within 20 (Year 1)
Numbers to 100, tens and ones (Chapter 1)
Counting in tens (Chapter 1)

Where this leads

Multiplying and dividing (Chapter 3)
Measures and money, where we add and take away (Chapters 5 and 6)

Lessons in this chapter

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

Practise with real exam questions

The DfE publishes the old KS1 tests, with mark schemes, for free. They are optional for schools now, so use them as extra practice.

KS1 Maths past papers