100th Day Smart Kid Addition Within 20 Color by Number Worksheet

Addition Within 20100th Day of School1st Grade2nd Grade

Math practice meets school spirit in this Smart Kid mystery picture, designed to support addition fact fluency within 20. Students solve each problem, color by code, and reveal the hidden character on a color-by-number page that is ready to use for 100th day activities.

Designed for independent work and easy review, this no-prep printable keeps students engaged with flexible options for centers, rotations, or quiet work time.

🏫 For classroom teachers: Great for 1st & 2nd grade classroom math centers, morning work, and sub plans.

🏠 For homeschool parents: Ideal for fun independent daily practice, hands-on learning, and self-checking.

Perfect for:

  • 100th Day of School math activities and celebrations
  • Smart Kid math centers and classroom rotations
  • Independent practice or quiet work time
  • Morning work, early finishers, or homework
  • Coloring displays or student work boards
  • Addition Within 20 review and reinforcement
  • Sub plans or small-group practice
  • Addition fact fluency practice
  • Printable take-home activities and more!

Want a different picture or skill? Customize this worksheet in the generator.