Mathfun ← Back to home

Practise the times table four examples at a time.

Mathfun is a free browser game for multiplication, division, addition and subtraction. It shows four large examples, big enough to read from the back of a classroom. Hold a finger down to see every answer, or tap one example to check yourself.

Play Mathfun
Illustration: a teacher beside a projected Mathfun board, 5 • 2 = 10, 5 • 3 = 15 and 5 • 4 = 20 answered, 5 • 5 still open, hands up across the class
An illustration. A teacher really did put Mathfun on a classroom projector, but nobody took a photo.

Hold the hand to see all four answers.

Nothing in Mathfun is marked wrong. Press and hold the hand under the examples and every answer appears; let go and they disappear. The board below follows the rules in the app's code.

0

The app on a phone. The grey circle marks the finger.

I put Mathfun online in November 2024, when my daughter had started spending her time on a phone. I didn't want to take the phone away, so I put the times table on it. The answer is always one press away, so looking isn't cheating.

Tap one example to check your answer.

Say the answer first, then tap the example. The answer stays on screen in a random colour that fades back to ink over three seconds, a short beep plays, and the star adds points.

Earn more points on the harder rows.

An example from the row of 8 earns 7 points and the row of 9 earns 8, while the easy row of 10 earns 1. The score resets every day, the Daily Score sheet shows it day by day, and every hundred points sets off confetti.

  1. +12
  2. +23
  3. +34
  4. +45
  5. +56
  6. +67
  7. +78
  8. +89
  9. +110
96 points, then an example from the row of 9.
The Daily Score sheet: bars for Wednesday, Thursday, Saturday, Sunday, Monday and Tuesday, and the Sort multiplication in order switch
The week on this chart is made up.

Switch between multiplication, division, addition and subtraction.

Division is built backwards from a multiplication, so every example comes out whole. For addition and subtraction the row of 2 to 10 becomes a choice of numbers up to 10, 20, 50 or 100, and subtraction never goes below zero.

Mathfun set to multiplication, row 6: 6 • 2, 6 • 3, 6 • 4 and 6 • 5, no answers yet
×Multiply
Division on row 6: 12 : 6, 18 : 6, 24 : 6 and 30 : 6
÷Divide
Addition with numbers up to 20: 12 + 15, 6 + 4, 16 + 11 and 4 + 8
+Add
Subtraction with numbers up to 50: 37 - 28, 13 - 8, 39 - 26 and 19 - 10
−Subtract

By default the examples go in order, 7 • 2 up to 7 • 9, then start again. The switch on the Daily Score sheet shuffles them.

Invert the colours for a projector.

A projector turns a white screen into a glowing wall. The button with a half-filled circle turns the background off and keeps the digits lit, and the big yellow Next Examples button becomes an outline. The chosen operation and row stay yellow, so the back row can still see which table is on.

Mathfun full screen on a laptop, light theme: row 7, 7 • 2 = 14 and 7 • 3 = 21 answered The same board inverted: near-black background, white digits, yellow outline around Next Examples
The app on a 1440 × 900 laptop screen, which is what the projector shows.

I set the theme before the page draws anything. Otherwise the screen would flash white in a dark classroom every time it loads.

Put the row of 7 on the wall.

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