This review packet contains 30 front & back packet practice opportunities, specifically for a Numbers & Operations math unit. The presentation is systematic, with a repetitive format. Questions emphasize the development of mental math & number sense, introductory algebraic expression, number representation, rounding, estimation, addition, subtraction, introductory to multiplication, mathematical vocabulary, computation, and story problems. Once printed front and back, cut in half for 2 separate practice sheets!!! These are great for skill reinforcement & homework.