In this homework assignment, all students complete 2 basic calculations before they are asked to either set up a reteaching time with the teacher for extra help or to try the skill again on a set of more difficult questions. For proficient students, there is also an optional, "challenge" portion. This homework is great for classes with mixed abilities-- the "can do" challenge can be made mandatory for some students but remain optional for others. All students must complete the set of review qu