Use the provided flash document to generate a random addition or subtraction problem. Have the children solve the problem and place a button, coin, etc. on their bingo card. When you get three in a row yell out bingo, or raise your hand. There are 24 different bingo cards provided in 6 jpeg files. Laminating the cards is preferable. Thank you, and as always, would love to hear your suggestions or issues that may arise.