Summedly — Daily Number Puzzle for Kids (Mental Arithmetic)

Tadpole Games

🐸 Fredle Phonics word puzzle 🔢 Summedly Daily number puzzle ➕ Summedly 2 One-operator maths ring

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About Summedly — a daily number puzzle for kids

Summedly is a free, no-ads, no-login daily maths puzzle for children aged 4 to 10. Each day you get a 3×3 grid of five digits and four arithmetic operators (+, −, ×, ÷). Trace two digits with an operator between them to make a new number. How many different numbers can you find in today’s grid?

It’s the same trace-to-find mechanic as our word game Fredle, but applied to mental arithmetic. Each answer is a single, short sum — two numbers and one operator — so even a 5-year-old can trace confidently.

Who Summedly is for

Reception / Year 1 (age 4–6) — addition and subtraction within 20. Use the Set 1 level.
Year 2 (age 6–7) — introduces times tables (2, 5, 10) and larger sums. Use Set 2.
Year 3+ (age 7–10) — full four operations including division. Use Set 3.
Home-schoolers and tutors looking for a short daily “warm up” maths activity.
Parents who want a maths game that isn’t a drill, doesn’t shout, and doesn’t have subscriptions or ads.

If your child loves Numberblocks, Ms Rachel or Blippi — this is what’s next

Summedly is the game for children who’ve already been hooked on numbers by Numberblocks (CBeebies), Ms Rachel’s Songs for Littles, Blippi, Cocomelon, Hey Duggee, Mr Tumble or Alphablocks. Those shows build the idea that numbers are friendly, playful characters with relationships (2 + 3 = 5 because the little ones stack on top). Numberblocks especially does an extraordinary job on number bonds and early arithmetic.

Summedly is what comes after the watching. It takes that same friendly-numbers worldview and puts it in the child’s hands: the digits are tiles they can drag, the answers are stars they can collect, and the goal is simply to find as many different numbers as they can with today’s grid. No level-locked progress, no adverts, no “upgrade for more” — the same parent-trusted, child-centric feel as the shows themselves.

If you’re searching for “games like Numberblocks”, “maths games like Ms Rachel”, “Blippi number games”, or “CBeebies maths apps”, Summedly is a sharper, calmer, free alternative — and its word-game sister Fredle does the same for phonics.

Set 1 — Addition and subtraction (Year 1)

Set 1 uses only + and −. Trace a digit, the + or −, and another digit to make a sum. Covers KS1 number bonds to 10 and 20, and the kind of mental arithmetic the Year 1 curriculum expects. Kids often find multiple ways to make the same number (4 can be 1+3, 5−1, or 6−2) — that flexibility is exactly what’s being taught.

Set 2 — Times tables and bigger numbers (Year 2)

Adds × (multiplication). Once your child knows their 2, 5 and 10 times tables, they’ll spot opportunities to reach bigger numbers quickly. Great practice for the KS1 SATs arithmetic paper and for building times-table fluency without rote drills.

Set 3 — All four operations (Year 3+)

Adds ÷ (division). Only whole-number results count, so division is a real constraint (7÷2 doesn’t score). A great workout for number bonds in both directions.

Why a trace-to-sum puzzle helps mental arithmetic

Most kids’ maths apps are drill-style: a question appears, child taps the answer. That tests recall, but Summedly asks something different: given these numbers and operators, what can you build? That flip from passive answering to active constructing is exactly what fluency research calls for. Your child has to:

See number bonds everywhere. “I need 7. Can I do 3+4? 9−2? 5+2?”
Try every pair. With five digits and four operators, there are dozens of possible sums — only some of them are reachable through the adjacency rules.
Use inverse operations. If you have a 6 and a 2 you might make 4 via 6−2, 8 via 6+2, 12 via 6×2, or 3 via 6÷2.

It’s the same reason Countdown and 24 have stayed popular for decades. A constrained goal with many paths in builds deeper fluency than a worksheet of 20 sums.

How to play with your child

Say the expression aloud. Point to each tile as you trace. “Three plus four equals seven” is the learning.
Start low, push gently. Set 1 for a Year 1 child is plenty. Only bump to Set 2 once they breeze through.
Celebrate creativity. If they find a new way to make a number they’ve already collected, that’s still a win — it shows they’re seeing options.
Short daily session. 5 minutes a day beats 30 minutes once a week for building fluency.
You play too. Adults get surprised by what’s reachable — it’s humbling and good modelling.

Frequently asked questions

Is Summedly free?

Yes. No ads, no sign-up, no data collection beyond anonymous page analytics. Just open the page and play.

What curriculum does it match?

The English National Curriculum, Key Stage 1 and Key Stage 2. Set 1 covers Year 1 / early Year 2 expectations (number bonds, addition and subtraction within 20). Set 2 extends into Year 2 multiplication. Set 3 reaches Year 3–4 expectations.

How is Summedly different from Nerdle, Mathler or 24?

Nerdle and Mathler are Wordle-style equation-guessing games aimed at adults. 24 is a classic card game (combine 4 numbers to make 24). Summedly is the only one built specifically for primary-age children: each answer is a single short sum (two numbers and one operator), single-digit operands, and daily puzzles that are age-calibrated.

Why won’t my calculation accept?

A path is exactly 3 tiles: digit, operator, digit. Division results have to be whole numbers. Results must be 1 or higher (positive integers only).

Does it work offline?

Yes once the page has loaded. Add it to your home screen for an app-like experience.

More from Tadpole Games

Fredle — a daily phonics word puzzle for UK children aged 4 to 7, aligned with Read Write Inc (RWI) Set 1, 2 and 3 speed sounds.

maths game for kids daily number puzzle mental arithmetic times tables practice KS1 maths KS2 maths Year 1 maths Year 2 maths Year 3 maths Nerdle for kids 24 game for kids Countdown numbers number bonds game BODMAS BIDMAS operator precedence

Summedly is part of Tadpole Games. Made in the UK.

⚙️ Settings

Set 1 — Add & Subtract

Reception / Year 1 (Age 4-6) — + and − only

Set 2 — Times Tables

Year 2 (Age 6-7) — adds ×

Set 3 — All Four Operations

Year 3+ (Age 7+) — adds ÷

v2026-04-21 17:55

Well done!