Easy · Worked puzzle

Undo the division first

Turn a bracketed division into a short list of number pairs.

Mathoji.com · 16 October 2026 · Math checked against the game’s rules

(□ + □) ÷ 3 = 4

4 distinct solutions · 2 blanks

Try the board first, or open the hints below at your own pace. No answers are shown until you choose to reveal them.

Before you play

Each blank takes one digit from 0 to 9. Choices may be repeated.
Follow the printed brackets and the order of operations. Each division must be exact. Division by zero is never allowed.
Find all 4 distinct solutions. Reordering terms of the same addition or multiplication counts once. Subtraction, division and bracket structure still matter.
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Show a starting hint

If a sum divided by three is four, what was the sum?

Read the worked approach

The brackets say to add the two blanks before dividing by three. Reverse the final operation: the sum must equal 4 × 3 = 12.
List pairs that add to twelve, keeping the smaller number first. The first legal pair is 3 and 9; a smaller first number would force the other above the keypad limit of nine.
Continue with 4 and 8, 5 and 7, and 6 and 6. Each sum is twelve, so each gives an exact quotient of four.
Stop at the equal pair. Continuing with 7 and 5 only swaps an addition you already found. This leaves four distinct solutions, not seven ordered arrangements.

Dividing just the second blank by three ignores the brackets. Also, 6 + 6 is allowed: a digit does not get used up.

Undo a fixed outer operation, then search the smaller problem inside the brackets.

Reveal all 4 solutions

One representative of each distinct solution is shown. Other accepted orders of the same addition or multiplication are not repeated.

(9 + 3) ÷ 3 = 4

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