24 Game Algebra Edition

For decades, teachers drilled American school children using flash cards that gave simple arithmetic problems. The advent of inexpensive electronic calculators in the 1970s made it possible to do much routine arithmetic automatically. Flash cards took new forms.
This set of cards teaches elementary algebra. The cardboard cards are printed on both sides with a circle divided into four quadrants; three quadrants have a digit and the fourth an algebraic expression in variables x and y. The goal of the game is to substitute values of x and/or y that are whole numbers between 1 and 9 into the expression . One seeks a number that can be combined by simple arithmetic operations with the three digits in the other three quadrants to reach a total of 24.
According to the instructions, 12 to 24 cards are selected and placed in a pile at the center of a table. A player who sees a solution to the top card touches it. If his or her solution is correct, the player wins the card. Once it is taken, the next card is in play. The combinations on the cards are classed as easy (one white dot), medium (two red dots) or difficult (three gold dots). Once the group of cards has been played, players add up the point value of the cards they have obtained, with one point for each easy card, 2 for medium cards, etc. The set has 24, 48, and 24 of these kinds of cards, as well as an instruction leaflet.
This is Edition #3797 of the 24 Game. A mark on the lid reads: 24 (/) GAME (/) ALGEBRA (/) EDITION (/) Builds Fast Minds TM. A mark on the bottom of the box reads: SUNTEX (/) INTERNATIONAL, INC. Another mark there reads: 118 North Third St. (/) Easton, PA 18042. A third mark there reads: [copyright symbol]1993. A fourth mark on the bottom reads: MADE IN THE USA.
The example was obtained by the donor at Georgetown Day School in the period 1996–1999.
Currently not on view
Object Name
date made
Suntex International Inc.
Physical Description
paper (overall material)
overall: 6.5 cm x 12.7 cm x 12.7 cm; 2 9/16 in x 5 in x 5 in
place made
United States: Pennsylvania, Easton
ID Number
accession number
catalog number
See more items in
Medicine and Science: Mathematics
Arithmetic Teaching
Science & Mathematics
Data Source
National Museum of American History, Kenneth E. Behring Center


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