Fox Market: free addition and subtraction games
The fox runs a fruit stall. Your child adds two trays of apples, or works out how many are left after a customer buys some, and drags the right price tag onto the sign. Every object is visible, so the sum can always be checked by looking.
- Addition and subtraction
- 9 levels
- Free · no sign-up
How to play Fox Market
- 1
Read the sign
A sum appears on the sign, such as 8 + 5 = ? or 20 − 10 = ?, with the apples on the stall below.
- 2
Drag the answer
Four price tags show possible answers. Drag the right one onto the question mark, or tap it, or type the number.
- 3
Count it together
Right: coins drop into the fox's jar. Wrong: every apple is counted one by one, or in tens and hundreds on bigger levels, until the right number lights up.
What Fox Market practices: adding and taking away with real amounts
Many children with dyscalculia can recite that 8 + 5 is 13 but have no picture of why, so facts do not stick and bigger sums fall apart. Fox Market always shows the amounts: apples in rows of five for small numbers, sticks of ten and crates of a hundred for bigger ones.
Addition starts with totals up to 10, then up to 21, then two-digit plus one-digit, two-digit plus two-digit with carrying, and three-digit plus two-digit numbers. Subtraction runs from taking away within 20 to three-digit minus two-digit numbers, with a crate of ten broken open when a child needs to borrow. The ranges and answer choices are the same as the addition and subtraction exercises in the Dyscalculia.io program.
There are no lives and no timer. After a wrong answer the apples are counted with the child and the right tag glows, so every question ends with the correct total.
Not sure which skill to start with? Take the free dyscalculia test — five short games, under 5 minutes, and a profile of five number skills.
All 9 levels of Fox Market
Pick a level under the game. The levels are the same steps as in the Dyscalculia.io program, from easy to hard; each round makes 10 new questions.
| Level | What your child practices |
|---|---|
| 1 | Adding, totals up to 10, apples in rows of five |
| 2 | Adding, totals up to 21 |
| 3 | Taking away within 20 |
| 4 | Two-digit + one-digit (e.g. 34 + 7), sticks of ten |
| 5 | Two-digit − one-digit (e.g. 52 − 7) |
| 6 | Two-digit + two-digit with carrying (e.g. 37 + 48) |
| 7 | Two-digit − two-digit with borrowing (e.g. 62 − 38) |
| 8 | Three-digit + two-digit (e.g. 764 + 95), crates of a hundred |
| 9 | Three-digit − two-digit (e.g. 653 − 73) |
Common mistakes in Fox Market and what they tell you
Counting everything from 1
Counting all the apples instead of starting from the first number works but is slow and error-prone. Encourage counting on from the bigger number.
Answers off by exactly ten
On two-digit sums, an answer ten too small or too large usually means a carried or borrowed ten was forgotten. Watch the stick of ten being packed or opened.
Adding when asked to take away
Picking the total on a subtraction question means the sign was not read. Point to the − sign and the customer before answering.
Tips for parents: getting the most out of Fox Market
- On addition, encourage counting on from the bigger number instead of counting everything from 1.
- On subtraction, ask your child to guess before the customer leaves: will there be more or fewer than half left?
- On the carrying and borrowing levels, point to the moment ten apples become one stick, or a stick is opened into ten.
- Play shop at home with coins or pasta: buying and giving change is the same skill.
Printable addition and subtraction worksheets
Take Fox Market off the screen: the same skill as free PDF worksheets, from dots and pictures to numbers, with an answer key on the last page.
All 26 free dyscalculia worksheets → · Free to share (CC BY 4.0) — Dyscalculia.io
More free dyscalculia games
Fox Market: questions parents ask
Is Fox Market free?
Yes. Fox Market is free to play in the browser, with no account, no download and no ads. The paid part is the Dyscalculia.io program, which adds a daily plan, spaced review and saved progress.
Does Fox Market teach carrying and borrowing?
Yes, on the harder levels. When ten apples are added up they pack into a stick of ten, and when there are not enough loose apples to take away, a stick or crate is opened. The child sees the exchange happen.
Does Fox Market work on a tablet or phone?
Yes. It runs in any modern browser and works with a finger, a mouse or the keyboard. On a phone, turn it sideways for the biggest picture.
What age is Fox Market for?
The first levels, with totals up to 10 or 21, suit children from about 5 or 6. The two- and three-digit levels suit primary school children and older pupils who still find written sums hard.