KS1 Maths textbook
Year 1 Numbers to 100: lesson and practice
- Strand Number
- Level Year 1
- Practice 85 questions with step-by-step solutions
By the end of this chapter you will be able to
- Count forwards and backwards to 100, starting from any number
- Use the 100 square to count on and back
- Count in tens, and say 10 more and 10 less
- Say how many tens and ones a number has, and write it in numerals
- Say one more and one less, even when the number crosses a ten
- Say which of two numbers to 100 is bigger, and put numbers in order
You should already know
- Numbers to 10 (Chapter 1)
- Numbers to 20 (Chapter 4)
- Comparing groups and numbers (Chapter 1)
Where this leads
- Counting in twos, fives and tens to make equal groups (Chapter 9)
- Money in 10p coins (Chapter 12)
- Numbers to 100 in Year 2
Lessons in this chapter
- 6.1 Counting to 100 on the 100 square · Worksheet (PDF) · Answers (PDF)
- 6.2 Counting in tens · Worksheet (PDF) · Answers (PDF)
- 6.3 Tens and ones · Worksheet (PDF) · Answers (PDF)
- 6.4 One more and one less · Worksheet (PDF) · Answers (PDF)
- 6.5 Comparing and ordering numbers to 100 · Worksheet (PDF) · Answers (PDF)
- Summary and key words
- Check-up and end-of-chapter quiz · Worksheet (PDF) · Answers (PDF)
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.