Winter Addition with Regrouping Color by Code | 3rd Grade Make 2- and 3-digit addition practice engaging, visual, and self-checking with this set of Winter Color-by-Code worksheets designed for 3rd grade students, and any students requiring extra practice with 2 and 3-digit addition with regrouping. Each page combines meaningful 2-digits or 3-digits addition practice with a cute winter theme students will love. This resource is perfect for reinforcing basic addition facts, fact families, an