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: Single Digits 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 Single Digits 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 9 & up.