Make subtraction practice fun, visual, and self-checking with this engaging Color By Number activity! This resource helps students master multi-digit subtraction with regrouping while revealing a colorful mystery picture. Available in both printable and digital formats, it's perfect for math centers, independent practice, sub plans, or early finishers. What’s Included:Printable version: Student worksheet with subtraction problems (4- to 6-digit numbers)Mystery picture coloring pageColor code