This Integer Addition captures your students imagination with its ninja theme. The deck contains 48 integer cards targeting grades 6,7 and 8 but could be used for advanced students that are younger. The numbers in this Integer Addition deck range from -99 to 99.The deck play 20 integer cards (out of 48) each turn randomly to ensure that students are dealt with a different hand each time keeping it interesting for them.If you would like to see this deck in action, please click on the link contain