This Sea Animals Themed Bundle provides a comprehensive set of worksheets focusing on addition, subtraction, and mixed operations within 20 with regrouping. Designed for Grades 1-2, this engaging resource helps students practice their math skills in a fun, themed setting. The bundle includes 180 pages of worksheets that are perfect for math centers, homework, or independent practice, and each set comes with answer keys for easy checking.

This bundle includes:

• Addition within 20 worksheets with regrouping.
• Subtraction within 20 worksheets with regrouping.
• Mixed addition and subtraction within 20 worksheets with regrouping.
• Sea animals theme to keep students engaged.
• Answer keys included for each set of worksheets.

With clear instructions and fun visuals, this resource is perfect for reinforcing basic math skills and building confidence in solving problems with regrouping.

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