Memory SystemsCards and PAO

Counting Images and Stops

Count pictures by dividing items by items per picture, then stops by dividing pictures by pictures per stop, rounding up each time.

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Before a run, memory athletes know exactly how many stops they need. The arithmetic is short.

Key idea

Pictures = items ÷ items per picture (round up). Stops = pictures ÷ pictures per stop (round up).
MethodCards per picturePictures for 52 cards
One card per picture152
Two cards per picture226
PAO318

Worked example: Worked example

A deck in PAO, with 2 pictures on each stop. How many stops?
  1. 52 ÷ 3 = 17.3, round up to 18 pictures.
  2. 18 ÷ 2 = 9 stops.

Answer: 9 stops.

Worked example: Per stop

How many cards does one stop hold with PAO and 2 pictures per stop?
  1. 3 cards per picture × 2 pictures = 6 cards.

Answer: 6 cards.

Practice

Pass with 3 right answers, the last 2 in a row. Each right answer earns 2 XP.

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@teddyrookbook GitHub Sources and credits