Number Words to 100
Read and write numbers to at least 100 in words
Lesson
Set out your lesson
“Number Words to 100 means reading and writing numbers in words—fourteen, twenty-seven, forty—not only as numerals. We will match a numeral to its word form, write a few from scratch, then check a fresh set to at least 100.”
Bring to the table
- Number cards or paper slips for values such as 14, 27, 40, 63, 85, 100
- Paper and pencil for writing number words
Extra for the adult
Worked example. 27 → twenty-seven (hyphen between tens and ones). 40 → forty (not “fourty”). 100 → one hundred. Reading and writing the word form matches the numeral.
Optional challenge. For Number Words to 100, write three number words between 70 and 100 from dictation and invent one kitchen “how many spoons” sentence using a number word. Optional: fix a wrong spelling such as “fourty.”
What to notice. Keep one parent note: numbers tried; word forms read/written; support used. A photo of writing alone is stronger with the numerals that were prompted. This session samples a few items, not mastery of every number word to 100.
Share and support
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Teaching approaches
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1 approach
Number Words to 100 means reading and writing numbers in words—fourteen, twenty-seven, forty—not only as numerals. We will match a numeral to its word form, write a few from scratch, then check a fresh set to at least 100.
Spend about 12 minutes reading and writing number words to at least 100 with cards and pencil, then checking two fresh items.
Family records and proof options
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Learning resources
Extra practice links — they do not replace Gakuva’s teaching approach.
Illustrative Mathematics · Practice link — not the full lesson
Where Do I Go?
Before you open · source notes
Number-line placement supports reading and saying number words toward 100. Not every place-value chart.
Free, no sign-in. A teacher solution is on the same page, so use the student view with your child.
Before you openAsk the learner to place a number and say its number word aloud.
Opening this link does not save learning or assess mastery.
Source, access and review notes
Public Illustrative Mathematics task page. The .html address responds HTTP 308 to this URL. An anonymous GET of this URL on 2026-11-12 returned HTTP 200 with no login or payment prompt. Where a teacher solution is present, it is on the same page as the student task; this check did not find a separate locked student view. An adult can use the student view section and should not read a solution aloud. Advertising was not observed in the fetched HTML text; that is not a browser, device, or ad-free guarantee. This is a paper or discussion task, not an automatically marked interactive game. Opening the link does not save practice or assess mastery. Diagrams on the page use missing or filename-only alt text, so they are not an accessible image equivalent. Accessibility still depends on an adult describing the picture.
Illustrative Mathematics. “Where Do I Go?.” Licensed CC BY-NC-SA 4.0. External task; Gakuva does not copy, host, embed, or redistribute it.
CC BY-NC-SA 4.0 — link only
Check understanding
- 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
“Can your 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 record
- Type
- Language
- Subject
- Mathematics
- Domain
- Number Representation & Place Value
- Age range
- Ages 6–7
Standards