Comparing decimals with matching precision (up to two places)
Compare numbers with the same number of decimal places up to two decimal places
Lesson
Set out your lesson
“Comparing decimals with matching precision (up to two places) means practising the idea at the table with counters or paper models and one clear check. We will demo once, then your child tries.”
Bring to the table
- Place-value grid (ones / tenths)
- Pencil
Extra for the adult
Worked example. Three tenths on the grid is 0.3.
Optional challenge. For Comparing decimals with matching precision (up to two places), add one harder example after success.
What to notice. Keep one parent note: examples tried; results; support used. This session samples Comparing decimals with matching precision (up to two places), not mastery.
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Teaching approaches
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1 approach
Comparing decimals with matching precision (up to two places) 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: Place-value grid (ones / tenths); Pencil. Adult shows 0.3 as three tenths on the grid. Child builds three decimal amounts on the grid and reads them aloud. Done: three correct decimal readings. Stop after the fresh check; keep optional challenge for another day.
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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
Drawing Pictures to Illustrate Decimal Comparisons
Before you open · source notes
Pictures of decimals support comparing decimals to hundredths. Not every thousandths comparison.
Free, no sign-in. A teacher solution is on the same page, so use the student view with your child.
Before you openAsk which decimal is greater and show matching place-value pictures.
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. “Drawing Pictures to Illustrate Decimal 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
- Order 0.45, 0.54, 0.39 from smallest to largest
- Compare 3.72 and 3.27 using place-value reasoning
- Place three two-decimal-place numbers on a number line in order
“If your child is comparing two prices — £4.75 and £4.57 — can they tell you which is more expensive without using a calculator?”
Curriculum record
- Type
- Procedural
- Subject
- Mathematics
- Domain
- Fractions
- Age range
- Ages 8–11
Standards