Great way to practice addition facts up to 20. Each page is a two or three student activity with a certain addition rule on it. Students roll dice (or pick a number card - included) and add it to the number at the top of the page. Student then uses a marker to cover the sum, When all sums are covered, student with the most numbers covered wins. Easy activity to change the rules to meet your classroom needs. May also use as a bump game. The camping theme makes it fun for students.