This resource will help students improve mental math skills, raise test scores and elevate mathematics beyond recall to an overall understanding of number sense and effective problem-solving strategies. Mathementals provides both developmental and repetitive practice in mental computation skills to help students achieve computational fluency. A review at the end of the activities relates to each operation, and each review is followed by a one-page game or puzzle. Students learn to develop their own range of mental strategies for each operation, and they gain understanding and flexibility in number and operations.