Build multiplication and division fluency with this no-prep mental math worksheet pack for Grades 4-5. Students practice using friendly numbers, factor pairs, break-apart strategies, the distributive property, same-tens multiplication shortcuts, and smart division strategies for 5, 25, and 125. This resource is designed for clear, practical classroom use. It works well for daily warm-ups, math centers, independent practice, homework, tutoring, intervention review, homeschool math, early finisher