The set contains instructions and reproducible playing cards for all the numbers from one to ten, multiples of ten to 100, and multiples of 100 to 900. Cards are divided equally between two players. The calculator announces the sum, difference, or product of the two cards used in the salute, depending upon which arithmetic operation the students are practicing. The two players look at each other's cards and race to guess the value of the number in his or her hand. The player who gives the correct answer first takes both cards.
Play continues for several rounds with players rotating the roles of calculator and card holders.
The winner is the player who collects the most cards. The teacher can regulate the level of the game by removing the tens and hundreds cards for younger students. Make the check payable to Vasha Rosenblum.