Rounding to the Nearest 10 Color by Number turns a key place value & rounding 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 round numbers to the nearest 10 and sharpen estimation. Built for Grade 3 and aligned to 3.NBT.A.1. 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.