Barden & Silvano 
Pre-Algebra and Algebra Warm-Ups, Grades 5 – 8 [PDF ebook] 

Pre-Algebra and Algebra Warm-Ups for grades 5 to 8+ provides students with daily math activities to get them warmed up for the lessons ahead and to review lessons learned. Each page features four warm-up activities that can be cut apart and used separately, making it easy to adjust each activity when needed. Mark Twain Media Publishing Company specializes in providing engaging supplemental books and decorative resources to complement middle- and upper-grade classrooms. Designed by leading educators, this product line covers a range of subjects including math, science, language arts, social studies, history, government, fine arts, and character.