Munchy the cookie monster munches the tray — and your child counts what's left. Take-away subtraction the way school teaches it, spoken out loud, free in your browser.
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Subtraction looks like one skill, but children build it in layers, and each layer needs the one below it to be solid:
Most of the frustration parents see with subtraction homework comes from a child being asked to work at layer 3 or 4 while still needing layer 1 or 2. The fix is almost never more worksheets — it's more chances to see the taking-away happen.
Here's the thing that trips up most early subtraction practice: when you take objects away, they're gone. The child is left staring at 4 crackers, trying to remember whether there used to be 6 or 7. The hardest part of the problem — holding the starting number in mind — is exactly the part young working memories are worst at.
That's why teachers use two quiet pieces of classroom technology. The first is the ten-frame: a simple 2-by-5 grid. Numbers laid out in a ten-frame can be recognised at a glance ("a full row and two more — that's 7") instead of counted one by one, so the child's effort goes into the subtraction, not into re-counting. The second is leaving a trace of what was removed — crossing out pictures rather than erasing them, or turning cups upside-down rather than taking them off the table. The whole stays visible: here's what's left, here's what went, and together they still make what we started with. That visible whole is the bridge from "taking away" to part–whole thinking, and it's exactly the trick Munchy's bite-mark ghosts play in our game below.
These are typical school expectations, not deadlines — children step through them at genuinely different speeds, and a child who is "behind" on facts but solid on meaning is in a far better spot than the reverse.
What to avoid: flash cards and timed drills before the meaning is solid (they teach fast guessing, not math), jumping to bare-number worksheets too early, and treating a wrong answer as a wrong child. When an answer is off, the winning move is always the same: go back to the objects and count together — no buzzer, no sigh, just "let's look".
Munchy's Cookie Munch is our free subtraction game for ages 5–7, and it's built exactly like the ideas above. Cookies come out of the oven onto a ten-frame tray, and Munchy — a shaggy teal kitchen monster with a chef's hat and zero self-control — munches some, one dramatic chomp at a time. Every eaten cookie leaves a faded bite-mark ghost in its spot, so your child can always still see the starting amount while they work out how many are left. The number sentence assembles itself piece by piece as the munching happens, and every question is spoken aloud.
Three levels follow the developmental ladder: Little Bites keeps it purely concrete within 5, Big Batch adds the full written sentence within 10 (7 − 2 = ?), and Mystery Munch flips to the missing part — the eaten cookies hide under a gingham napkin ("There were 7. Now there are 4. How many did Munchy munch?") and the napkin lifts after each answer so the ghosts can be counted to check. Misses are met with a gentle recount, never a buzzer, and three-star rounds bake showcase cookies for Munchy's cooling rack.
▶ Play Munchy's Cookie Munch — free
When your child wants more math play: Conker's Tumble Towers is the addition mirror of this game — every sum solved loads an acorn cannon and knocks down a tower — and it's free too. Bruno's Number Bakery (also free) warms up the counting that subtraction stands on, and Pippa's Seesaw Park builds the more-and-less comparing that "how many more?" questions need.
Prefer paper for practising the numerals themselves? Our free printable numbers 1–20 pairs nicely with the cup game above.
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Yes — Munchy's Cookie Munch is free to play in your browser, with no sign-up and no account. No ads and no tracking, ever.
Most children meet take-away subtraction with real objects around age 5, work within 10 with pictures and number sentences around age 6, and build quick recall of facts around age 7. Ranges vary widely — comfort with counting comes first.
No. Every prompt is spoken out loud and the answers are big number buttons, so early readers play independently.
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