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Year 1Addition & Subtraction

Addition and Subtraction within 10 – Maths Mystery!

4.03 reviews

Turn early arithmetic into a detective mission! In this Year 1 “Maths Mystery”, pupils unlock clues by solving addition and subtraction problems within 10 using number bonds, “one more” and “one less”, or simple part-whole reasoning. With a colourful, story-driven format, this resource brings hands-on engagement to the classroom—perfect for fluency starters, maths stations, or independent tasks—al

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Fully editable Word or PowerPoint file
Differentiated three ways
Instant download, no watermark

The objective it teaches

Add and subtract one-digit and two-digit numbers to 20, including zero

About this resource

Addition and Subtraction within 10 – Maths Mystery is an engaging Year 1 resource from Master The Curriculum , crafted in line with the White Rose Maths framework and the UK National Curriculum. This hands‑on, problem-solving activity challenges young learners to apply their understanding of addition and subtraction within 10 by cracking a maths mystery. Featuring colourful visuals, part‑whole models, practical manipulatives, and carefully designed reasoning questions, this resource builds fluency, deepens conceptual understanding, and supports early arithmetic mastery. Ideal for independent practice, small-group activities or formative assessments, it encourages exploration, confidence, and mathematical thinking in KS1 students. Key features: Focuses on addition and subtraction within 10 Maths mystery format enhances engagement and motivation Supports key Year 1 objectives with fluency and reasoning tasks Concrete and pictorial representations reinforce understanding Suitable for classroom use, interventions, or homework extensionRead more

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What you get, 2 files

PDFActivityPrint and go.
PPTXActivity, editableEditable, so you can change the numbers or the names.

The standard small step pack, as her own modules ship it. We do not print page counts here, because her catalogue does not publish them and a guessed number is worse than none.

★★★ Differentiated three ways

Working towardsScaffolded, with the model or the bar already drawn.
Working withinThe expected standard for the year group.
Greater depthReasoning and explaining, not just more of the same.

Her own system, with the star count repeated in every worksheet header so a child can be handed the right sheet without a word.

What teachers said after they used it

All reviews →

4.03 verified reviewsWe ask once, seven days after the download, and one tap is enough.

Aisha KarimSENCO, Newlands Primary Academy, LutonVerified download, 2 February 2026

“The editable file is why we renewed.”

Being able to change two questions for the child who joined us in January, without rebuilding the whole sheet, is worth the subscription on its own.

12 teachers found this helpful

Steven LoughYear 2 teacher, Abbeyfields First School, MorpethVerified download, 23 January 2026

“Good value, and the answers are actually on it.”

Small thing, but half the free sheets online expect you to work the answers out yourself. My TA can run a group on this without a briefing first.

5 teachers found this helpful

Beth NightingaleYear 1 teacher, Poplar Farm School, GranthamVerified download, 13 January 2026

“Fine, though the font is small for my class.”

The maths is right and the sequence is sensible. Several of my children needed it enlarged to A3, which is easy enough but worth knowing before you print thirty.

4 teachers found this helpful