Summer Sandcastle Addition Within 20 Color by Number Worksheet
Addition Within 20Summer1st Grade2nd Grade
Encourage addition fact fluency within 20 with this summery Sandcastle mystery picture. Students solve each problem, color by code, and reveal the hidden castle at the shore in this color-by-number page. It's a handy activity to keep nearby for centers, homework folders, or a quick burst of summer practice.
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:
- June, July & August Summer Math Activities
- Summer-themed 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.











