---
title: "The multiples of 100"
description: "Understand that the multiples of 100 (100–900) each represent a number of hundreds with 0 tens and 0 ones"
canonical: https://lightmysky.com/learn/mathematics/the-multiples-of-100-mt_R2ccrI-nKD
source: https://lightmysky.com/learn/mathematics/the-multiples-of-100-mt_R2ccrI-nKD.md
retrieved: 2026-10-19
---

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# The multiples of 100

Understand that the multiples of 100 (100–900) each represent a number of hundreds with 0 tens and 0 ones

Subject: Mathematics · Area: Number Representation & Place Value · Ages 7 to 8
Page: https://lightmysky.com/learn/mathematics/the-multiples-of-100-mt_R2ccrI-nKD

## Ready when they can

- Identify that 300 means 3 hundreds, 0 tens, 0 ones
- Place multiples of 100 on a number line to 1000
- Read and write multiples of 100 and explain their place-value structure

## Lesson: Counting by hundreds

You already know that a hundred is ten tens. Now let's count by hundreds. Numbers like 100, 200, 300, and so on are called multiples of 100. Each one is some number of hundreds, with 0 tens and 0 ones left over.

*(drawing: Hop by hundreds: 100, 200, 300, all the way up to 900.)*

**Example.** Mia packs marbles into bags of 100. She fills 4 bags and has none left outside. She has 400 marbles: 4 hundreds, 0 tens, 0 ones.

**Tip.** Look at the last two digits of the number. A multiple of 100 always ends in two zeros, and those zeros are your clue: 0 tens, 0 ones.

**Recap.** A multiple of 100 is some number of hundreds with 0 tens and 0 ones, and it always ends in two zeros.

## Practice

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

## Needs first

- [A Hundred Is Ten Tens](https://lightmysky.com/learn/mathematics/a-hundred-is-ten-tens-mt_8gy7uxRlF6)

## Opens up

- [Counting Within 1,000](https://lightmysky.com/learn/mathematics/counting-within-1-000-mt_M2v1A9OEuM)