No Regrouping Addition and Subtraction: Math Snake

The cute math snake is designed for students to add and subtract numbers up to 20 without regrouping in an engaging way.

The interactive worksheet contains two sets of tasks and two puzzles.

After each answer is written down, students receive feedback on the correctness of the result. Incorrect solutions can be repeatedly corrected.

These free addition and subtraction up to 20 worksheets can help build mental maths skills.