---
title: "Reading and writing numbers to 1000"
description: "Read and write numbers to 1000 in numerals, number names, and expanded form"
canonical: https://lightmysky.com/learn/mathematics/reading-and-writing-numbers-to-1000-mt_VFsuftfvYM
source: https://lightmysky.com/learn/mathematics/reading-and-writing-numbers-to-1000-mt_VFsuftfvYM.md
retrieved: 2026-10-19
---

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# Reading and writing numbers to 1000

Read and write numbers to 1000 in numerals, number names, and expanded form

Subject: Mathematics · Area: Number Representation & Place Value · Ages 7 to 8
Page: https://lightmysky.com/learn/mathematics/reading-and-writing-numbers-to-1000-mt_VFsuftfvYM

## Ready when they can

- Read a three-digit numeral aloud correctly
- Write a three-digit number in words (e.g. 'three hundred and forty-two')
- Write a number in expanded form (e.g. 600 + 30 + 7)

## Lesson: Reading and writing numbers to 1000

You already know that a three-digit number has a hundreds digit, a tens digit, and a ones digit. Now you will read numbers like 342 out loud, write them in words, and break them apart into hundreds, tens, and ones.

*(drawing: 342 splits into 300, 40, and 2. Add them back together and you get 342 again.)*

**Example.** Look at 508. There are 5 hundreds, 0 tens, and 8 ones. We skip the tens word and say 'five hundred and eight'. In expanded form it is 500 + 0 + 8.

**Tip.** Watch out when the tens digit is 0. Do not turn the ones digit into a 'ty' word. 508 is 'five hundred and eight', not 'five hundred and eighty'.

**Recap.** A numeral, its words, and its expanded form all name the same number in three different ways.

## Practice

18 questions on this page, each with its working shown.

## Needs first

- [Number Words to 100](https://lightmysky.com/learn/mathematics/number-words-to-100-mt_76SPWvdI7r)
- [The three digits of a three-digit number](https://lightmysky.com/learn/mathematics/the-three-digits-of-a-three-digit-number-mt_aPBzD28_mT)
- [Reading and writing numbers to 120](https://lightmysky.com/learn/mathematics/reading-and-writing-numbers-to-120-mt_XV0B4kWwqL)

## Opens up

- [Reading and writing numbers (age 9+)](https://lightmysky.com/learn/mathematics/reading-and-writing-numbers-age-9-mt_JwP9QFv6gQ)