Number Words to 100

LANGUAGE

Mathematics›Number Representation & Place Value|Ages 6—7|ID: mt_76SPWvdI7r

Read and write numbers to at least 100 in words

Mastery Evidence

Read 'fifty-seven' and write the numeral 57
Write 'eighty-three' when shown the numeral 83
Read and write all decade words (twenty, thirty … ninety) correctly

Assessment Prompt

“Can [child] write 'seventy-four' or 'one hundred and three' as number words — and read them correctly when they appear in a book or on a sign?”

Curriculum Standards1 alignment

Maths/Y2/NPV/5The national curriculum in England

Read and write numbers to 100

Read and write numbers to at least 100 in numerals and in words.

Mathematics · Key Stage 1

Prerequisites2

Number Words to Twenty
hardAges 5—6
Reading and writing numbers to 100
hardAges 5—6

Show full prerequisite tree

Number Words to Twenty hard
Writing number words to 100 extends from writing number words to 20
- Reading and writing numbers to 20 hard
  Reading/writing number words requires already knowing the numeral forms
  - How Many in Total? hard
    Reading/writing numerals 0–20 requires understanding that numerals represent quantities (cardinality)
    - One-to-one counting hard
      Cardinality principle builds on one-to-one correspondence — you must count correctly to know the last number tells 'how many'
  - Writing digits 0-9 hard
    Writing numerals requires the motor skill of forming digits 0-9 (taught in English handwriting)
    - Sitting and holding a pencil soft
      Same motor skills for digit formation
- Blending Sounds to Read Words hard
  Reading number words (one, two, three...) requires phonics blending skills
  - Single Letter Sounds hard
    Need GPC knowledge to blend
    - Knowing all letters hard
      Must recognise letters before learning their sounds
      - Understanding print hard
        Must understand print direction before letter identification matters
  - Onsets & Rimes hard
    Phoneme awareness needed for blending
    - Rhyming words soft
      Rhyme awareness supports finer phoneme skills
    - Syllables soft
      Syllable awareness builds toward phoneme level
- Reading High-Frequency Words by Sight soft
  Many number words are irregular and must be recognised as sight words
  - Knowing all letters hard
    Need to recognise letters to read sight words
    - Understanding print hard
      Must understand print direction before letter identification matters
  - Blending Sounds to Read Words soft
    Blending helps attempt unfamiliar words but sight words bypass phonics
    - Single Letter Sounds hard
      Need GPC knowledge to blend
      - Knowing all letters hard
        Must recognise letters before learning their sounds
        
        Understanding print hard
        Must understand print direction before letter identification matters
    - Onsets & Rimes hard
      Phoneme awareness needed for blending
      - Rhyming words soft
        Rhyme awareness supports finer phoneme skills
      - Syllables soft
        Syllable awareness builds toward phoneme level
Reading and writing numbers to 100 hard
Writing number words to 100 requires reading the corresponding numerals
- Reading and writing numbers to 20 hard
  Reading/writing numerals to 100 extends from reading/writing numerals to 20
  - How Many in Total? hard
    Reading/writing numerals 0–20 requires understanding that numerals represent quantities (cardinality)
    - One-to-one counting hard
      Cardinality principle builds on one-to-one correspondence — you must count correctly to know the last number tells 'how many'
  - Writing digits 0-9 hard
    Writing numerals requires the motor skill of forming digits 0-9 (taught in English handwriting)
    - Sitting and holding a pencil soft
      Same motor skills for digit formation
- Rote counting to 100 hard
  Reading/writing numerals to 100 requires fluent rote counting to 100
  - One-to-one counting hard
    One-to-one correspondence requires knowing the number name sequence

Unlocks1

Reading and writing numbers to 1000
hardAges 7—8