Check the file
Download the PDF to your device and open it in a dedicated PDF reader. Browser print dialogs sometimes change scaling without making it obvious.
Print & play guide
Good components without special equipment.
A home printer, ordinary scissors and a few minutes are enough. Start with a test page before printing a full deck.
Print at actual size
Choose A4 paper and 100% or Actual size. Turn off Fit, Shrink and borderless enlargement. Print one component page first and check its size before continuing.
Choose the material
Ordinary office paper works for a quick test. For repeated play, use roughly 160–220 gsm paper, laminate the sheets or slide cut cards into sleeves with spare playing cards behind them.
Handle two-sided pages
When a file contains fronts and backs, choose double-sided printing and flip on the long edge unless that PDF says otherwise. Test one pair first because printers feed paper differently.
Cut and organise
Cut on the marked lines. Keep each deck in a labelled envelope or small zip bag; add the rules and note which difficulty cards were removed.
Make the first game easier
- Read the goal and one turn before showing every exception.
- Play the first two turns face up and solve them together.
- Use the smaller number range even when the child is older.
- Let children point, move pieces and say the complete calculation.
- Stop after the planned short game; replaying is better than stretching it.
Colour is helpful, not the only signal
Important actions are also written with words, numbers and symbols. If colour is difficult to distinguish or you print in greyscale, read the action label and the + or − sign rather than relying on the card colour alone.
Pick your first game
Both games are free and include an easier way to begin.