--- title: "Rounding to 10, 100, 1000" description: "Round any number to the nearest 10, 100, or 1000" canonical: https://lightmysky.com/learn/mathematics/rounding-to-10-100-1000-mt_NLSfvB9vUl source: https://lightmysky.com/learn/mathematics/rounding-to-10-100-1000-mt_NLSfvB9vUl.md retrieved: 2026-10-19 --- > **Agent view.** This is the Markdown twin of the page, for tools and assistants. > When to use this site, and the call that answers each job: https://lightmysky.com/agent-instructions.md > API description (OpenAPI 3.1): https://lightmysky.com/openapi.json · Authentication: https://lightmysky.com/auth.md > Pricing: https://lightmysky.com/pricing.md · Catalog: https://lightmysky.com/llms.txt · Full catalog: https://lightmysky.com/llms-full.txt > Every machine-readable file on this domain: https://lightmysky.com/.well-known/ai-catalog.json > Ask for Markdown with `Accept: text/markdown`, a `.md` address, or `?mode=agent`. # Rounding to 10, 100, 1000 Round any number to the nearest 10, 100, or 1000 Subject: Mathematics · Area: Number Representation & Place Value · Ages 8 to 9 Page: https://lightmysky.com/learn/mathematics/rounding-to-10-100-1000-mt_NLSfvB9vUl ## Ready when they can - Round 4,367 to the nearest 10 (4,370), 100 (4,400), and 1000 (4,000) - Explain the rounding rule using a number line (which multiple is closer) - Apply rounding to estimate calculations ## Lesson: Rounding to 10, 100, and 1000 Rounding changes a number to the nearest 10, 100, or 1000, so it is easier to work with. You already know place value, so you know which digit sits in the ones, tens, hundreds, and thousands spot. Rounding uses those digits to find the closest round number. *(drawing: 34 sits between 30 and 40. It is only 4 away from 30, but 6 away from 40, so it rounds down to 30.)* **Example.** Round 4,367. To the nearest 10, look at the ones digit, 7. It is 5 or more, so 4,367 rounds up to 4,370. To the nearest 100, look at the tens digit, 6. Round up to 4,400. To the nearest 1000, look at the hundreds digit, 3. Round down to 4,000. **Tip.** Find the digit just to the right of the place you are rounding to. If it is 5, 6, 7, 8, or 9, round up. If it is 0, 1, 2, 3, or 4, round down. Every digit after that becomes zero. **Tip.** Rounding lets you estimate fast. To add 4,367 and 2,850, round each to the nearest 1000 first: 4,000 + 3,000 = 7,000. That is close to the real answer and quick to check in your head. **Recap.** Look at the digit right after the place you're rounding to: 5 or more rounds up, 4 or less rounds down, and everything after turns to zero. ## Practice 20 questions on this page, each with its working shown. ## Needs first - [Ordering Numbers to 1000](https://lightmysky.com/learn/mathematics/ordering-numbers-to-1000-mt_AQcVRBddko) - [Place value of each digit](https://lightmysky.com/learn/mathematics/place-value-of-each-digit-mt_jY7uf0Cb7o) ## Opens up - [Place Value Problem-Solving](https://lightmysky.com/learn/mathematics/place-value-problem-solving-mt__sMrmOv3bx) - [Rounding Large Numbers](https://lightmysky.com/learn/mathematics/rounding-large-numbers-mt_5NwqN6pf_A) - [Two-Step Equations](https://lightmysky.com/learn/mathematics/two-step-equations-mt_anAe11HAEH) - [Estimating by rounding](https://lightmysky.com/learn/mathematics/estimating-by-rounding-mt_QaYfeVL-0C)