Written Multiplication
Multiply two-digit and three-digit numbers by a one-digit number using formal written layout
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1858 concepts · 9 subjects
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1 approach
Written Multiplication 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: Small counters or grid paper; Paper and pencil. Adult models 3 × 4 as three groups of four, then writes the product. Child builds three multiplication examples as equal groups and records each product. Done: three correct products with groups matching the writing. Stop after the fresh check; keep optional challenge for another day.
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Start practiceWritten Multiplication practice
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Learning resources
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Illustrative Mathematics · Practice link — not the full lesson
Marta's Multiplication Error
Before you open · source notes
Finding Marta’s error supports careful written multiplication. Not every mental-only estimate.
Free, no sign-in. A teacher solution is on the same page, so use the student view with your child.
Before you openAsk the learner to find the mistake in a written product and correct it.
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. “Marta's Multiplication Error.” 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
- Set out and solve 47 × 6 using short multiplication
- Set out and solve 234 × 5 using short multiplication with carrying
- Check the answer using estimation (e.g. 234 × 5 ≈ 200 × 5 = 1000)
“Can your child work out '347 × 6' by setting it out formally in a column — multiplying each digit separately and carrying where needed?”
Curriculum record
- Type
- Procedural
- Subject
- Mathematics
- Domain
- Multiplication & Division
- Age range
- Ages 8–10
Standards