Ordering Numbers to 1000
Compare and order numbers up to 1000 using >, =, and < symbols, based on place-value understanding
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Ordering Numbers to 1000 means practising the idea at the table with counters or paper models and one clear check. We will demo once, then your child tries.
Materials: Counters or paper models for the idea; Pencil for recording. Adult models one concrete example of the idea. Child completes three concrete examples and says a reason each time. Done: three correct examples with a spoken reason each. Stop after the fresh check; keep optional challenge for another day.
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Learning resources
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Illustrative Mathematics · Practice link — not the full lesson
Number Line Comparisons
Before you open · source notes
Plot three-digit numbers on a number line, then compare pairs by place and magnitude. The supplement supports ordering through number-line position, not exhaustive list-sorting.
Free, no sign-in. A teacher solution is on the same page, so use the student view with your child.
Before you openNumber-line images use filename alt text, not a description. The optional student PDF returned application/pdf to a ranged request; its pages were not fetched for review and this supplement does not depend on it. Ask why one plotted number sits to the right of another.
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 2026-11-10 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. “Number Line Comparisons.” 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
- Compare two three-digit numbers by examining hundreds first, then tens, then ones
- Use >, =, and < correctly to record comparisons of three-digit numbers
- Order a set of numbers up to 1000 from smallest to largest, e.g. by placing them on a paper or interactive number line
“If you give your child a set of three-digit numbers like 456, 231, and 789, can they put them in order and use > and < correctly?”
Curriculum record
- Type
- Procedural
- Subject
- Mathematics
- Domain
- Number Representation & Place Value
- Age range
- Ages 7–9
Standards