Check the listing for details. NEW 24 GAME Math PRIMER ADD SUBTRACT 48 Cards and Instructions-. Condition: New. Listed at 14.95 USD. NEW 24 GAME PRIMER ADD SUBTRACT 48 Cards and Instructions- Get students to lose their fear of math, work on their mental math skills, practice until they achieve fluency, and recognize multiple ways to solve problems- - -all from one game!24 Game: Add/Subtract Primer players have one goal: to make the number 24 from four numbers on a game card by adding, subtracting, multiplying, and dividing - -using each number only once.Add/Subtract Primer cards incorporate positive numbers only.Cards offer three levels of difficulty coded by dots: "1 Dot" cards are easy, "2 Dot" cards are at a mid-difficulty level and "3 Dot" cards are tough. Game cards are 4'' x 4'' and double-sided. 48 cards. Ages 6 & up. Double-sided, 4'' x 4'' cards. 1 Dot, 2 Dot & 3 Dot.How to play. Card has two wheels and a white target number. Pick the wheel that makes the target number using addition and subtraction ONLY. Use all numbers on the wheel, but use each only once.