Create vibrant displays that reinforce essential math facts with IXL’s Addition and Subtraction Math Posters! --The set of classroom posters contains two high-resolution, full-color addition and subtraction 18” x 24” classroom posters that are printed on 300g art paper with waterproof, double-sided lamination. Each poster features addition and subtraction facts for numbers 1-12. Perfect for both homeschool and classroom décor, these eye-catching, educational posters reinforce math skills to help students build confidence and speed while practicing math. --IXL has been a trusted leader in education for over 25 years. Used by more than 15 million students worldwide and trusted by over 1 million teachers, IXL is the most popular online learning platform in the U.S. Backed by over 75 scientific studies, IXL’s comprehensive, curriculum-aligned K-12 program is proven to help every learner succeed.