Mathematics

Matrix

Four arithmetic puzzles every day, one per difficulty. Fill the blank circles so every equation holds.

Solved 0/4 today.

How to play

Click a blank circle, type a number 1–99, press Enter.
Every horizontal and vertical equation must hold simultaneously. Standard order of operations (× and ÷ before + and −).
All values are positive integers. Division is exact only.
Four hints per puzzle. Give up to reveal the solution.