Getting the Kindergarten class involved in singing songs is an enjoyable way for them to learn subtraction math. There are many songs available for teaching subtraction, such as the "13 Minus" song and the "One Less Penny" song. Both songs start with a number such as 13 or 10 and subtract one number at a time using a rhyme. This introduces Kindergartners to subtraction, as they can use the rhyme to help them subtract numbers by simply recalling the examples used in the rhyme.
Musical chairs is an interactive game for Kindergarten students. The teacher separates the class into groups. The first group plays the game while the second group subtracts a student from the game every time the music stops and a chair is removed. Students keep track of the full number of students sitting in chairs and subtract from that number the amount of students left standing. When the game is over, the two groups switch, so one group gets to play musical chairs and the other group is doing the subtracting.
Get the class involved in counting items in a fish bowl. Put items into a fish bowl, such as marbles, dinkies or any toy or object that kids like to play with. Count out a number of marbles with the class as you are putting them into the fish bowl. Ask a student to remove two marbles and get the class to participate in how many marbles are now left in the bowl. You can ask various kids to add or subtract marbles, while getting the class to observe and participate in subtracting and adding the marble count in the fish bowl.
Put students into groups of two or three and give them some paper and pencils. Pull a table up to the front of the class and pick a theme that the kids will enjoy, such as their favorite Disney or other cartoon characters, or even farm animals. Put a bunch of different stuffed farm animal toys on the table in front of the class and play a farm game. Acting as the farmer, put some of the animals into the stall. Ask the students how many farm animals are left and to write down the answer on the piece of paper, all working together. Create a story for the farm animals coming and going onto the table; for example, six of the farm animals need to be fed or four of them are going for a walk. The group that gets the most right answers in the quickest amount of time wins.