UK Primary Maths · Year 1–6

Maths, made magical

Meet DumDum — the cuddly monster who makes primary maths click, with clever tricks that stick and free worksheets to print at home. 🟣✨

DumDum the friendly maths monster waving
🇬🇧 England National Curriculum 🎯 KS1 & KS2 📄 Free worksheets 🛡️ Safe · Made for Kids

Why it works

Learning that actually sticks

Every DumDum lesson follows the same proven shape teachers use — see it, learn the trick, then practise.

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See it first

Ten-frames, counters and colourful pictures make each idea concrete before any symbols appear.

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Learn the trick

Every lesson teaches a real mental-maths strategy — the "why", so answers come fast and stay.

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Practise together

A "your turn" moment in every video, plus a matching printable worksheet to lock it in.

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Actually fun

Bright doodles, silly moments and a loveable host mean kids ask to watch the next one.

The lessons

Lesson library

Short, colourful lessons you can watch in order. New episodes added every week.

Year 1–2Learn to Add

Learn to Add!

Understand addition as combining two groups — plus the clever count-on trick.

Year 1–2Number Bonds to 10

Number Bonds to 10

The most important facts in early maths — two parts that make a whole.

Year 2The Make-10 Trick

The Make-10 Trick

Add tricky numbers fast by bridging through ten with a ten-frame.

Year 2Super Doubles

Super Doubles

Doubles are super-speedy facts every child should just know.

Year 2Near Doubles

Near Doubles

Know a double? Then near-doubles are easy — just add one more.

💡 New to DumDum? Start with Learn to Add, then Number Bonds to 10 — it unlocks all the addition tricks that follow.

The journey

From Year 1 to Year 6

DumDum grows with your child — a clear ladder through the whole of UK primary maths.

Y1

Year 1

Counting, number bonds, and adding & subtracting within 20.

Y2

Year 2

Addition strategies, the 2, 5 & 10 times tables, and place value.

Y3

Year 3

The 3, 4 & 8 tables, fractions, and column methods.

Y4

Year 4

All times tables to 12 (with tricks!), and an intro to decimals.

Y5

Year 5

Multi-digit multiplication & division, fractions and percentages.

Y6

Year 6

Ratio, early algebra, and confident problem-solving for SATs.

Practise at home

Free worksheets

Printable practice to match each lesson. No sign-up, no email — just download and print.

Year 1–2 · KS1

Number Bonds to 10

Fill-in bonds, ten-frames, matching pairs and a brain-buster — the perfect follow-up to the video.

⬇ Download PDF
Coming soon

More on the way

A matching worksheet for every lesson — Make-10, Doubles, Near Doubles and beyond. Check back weekly!

For grown-ups

For parents & teachers

Built to slot straight into home learning and the classroom.

  • Aligned to the England National Curriculum (KS1 & KS2)
  • Uses the concrete–pictorial–abstract approach schools follow
  • Every topic tagged with the correct school year
  • Free printable worksheets for extra practice
  • Safe & ad-appropriate — every video set as "Made for Kids"

How to use a lesson

  1. Watch togetherOne short lesson, one clear idea.
  2. Pause on "Your turn"Let your child answer out loud before DumDum does.
  3. Print the worksheetA few minutes of practice locks the trick in.

Our story

Made by a dad, for curious kids

DumDum Maths started at a kitchen table — one parent wanting to make maths feel like play instead of a chore. Every lesson is crafted so children don't just get the right answer, they understand why it's right, and remember it. No pressure, no boredom — just a friendly monster, a clever trick, and a big smile when it finally clicks. 🟣

Join us on YouTube

A new maths lesson every week

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