Subtraction across Zeros Color by Number turns a key subtraction 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 master borrowing across zeros, the classic stumbling block. Built for Grades 3–4 and aligned to 3.NBT.A.2, 4.NBT.B.4. 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.
Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.