Display IXL’s vibrant Addition and Subtraction Math Posters to reinforce essential equations! The set contains two high-resolution, full-color addition and subtraction classroom posters, sized at 17” x 22”. Each poster features essential equations for numbers 1-12 to help students build mathematical confidence and speed. These eye-catching, educational displays are perfect for any learning space.With over 25 years of experience in education, IXL reaches millions of learners around the world with a diverse range of products. IXL is trusted by over 1 million educators and used in 96% of the top US school districts.