Secret code math that can't be memorized
Most secret-code worksheets use the same key forever — the same icon is always the same digit, on every sheet, so a kid learns the key instead of the arithmetic. Ours reassigns the code every time you generate.
The icons change with every sheet.
A secret code math worksheet generator — printable PDFs where the icons mean something different on every sheet. Pick a theme, the operations, and how the icons map to numbers. Each sheet opens with a legend — icon equals number — and every problem below is written in icons, so the child decodes first and then solves. Set the mapping to random and the key is reshuffled on every sheet, which stops it being memorized and keeps the decoding real.
1 token a sheet, fewer in batches.
US Letter PDF — prints on any home printer.
Read
The legend at the top gives every icon a number.
Swap
The problems are written in icons. Swap each for its number first.
Solve
Set the key to random and yesterday's icons will not open today's page.
Operations
Sheet size
Your worksheet lands here — download, print, or email it.