Volume of Rectangular Prisms Color by Number turns a key geometry skill into a picture students actually want to finish. Students solve each problem, match the answer to the color key, and a hidden picture appears region by region. Students find volume in cubic units. Built for Grade 5 and aligned to 5.MD.C.5. No-prep and self-checking, it's ready for math centers, morning work, early finishers, or homework — and every download includes a print-ready PDF plus an interactive version with the answer key.