ADEMS
Trace equations through a grid of numbers. Three puzzles a day; pick one.
How to play
An ADEM is an equation traced through the grid: Add, Divide, Equals, Multiply, Subtract. Every tile belongs to exactly one ADEM. Drag through neighbouring tiles (no diagonals) to trace one. The operators appear as you go, and the last tile is the result.
ADEMs are 3 to 6 tiles long and use + − × ÷. Operations apply left to right, like a calculator chain: 49 − 1 ÷ 8 = 6. Where that differs from textbook order, a bracket under the key shows the grouping.
Find every ADEM to finish. The puzzle key below the grid shows one square per term for each ADEM still hidden.
An ADEM is an equation traced through the grid: Add, Divide, Equals, Multiply, Subtract. Every tile belongs to exactly one ADEM. Drag through neighbouring tiles (no diagonals) to trace one. The operators appear as you go, and the last tile is the result.
ADEMs are 3 to 6 tiles long and use + − × ÷. Operations apply left to right, like a calculator chain: 49 − 1 ÷ 8 = 6. Where that differs from textbook order, a bracket under the key shows the grouping.
Find every ADEM to finish. The puzzle key below the grid shows one square per term for each ADEM still hidden.