These math brain teasers are activities for 8th grade math. Concepts include statistics, probability, geometry, simplifying expressions, solving equations, linear functions, the number system, and more. The brain teasers make great 8th grade math review activities, math centers, warm-up problems, or work for early finishers.This bundle includes all five 8th grade math brain teaser activities. They align with many of the common core standards and include 525 total problems. There is one set of 10