Help students build confidence in addition with this 60-page printable pack of horizontal addition problems for numbers 1–20. Designed for early learners, these worksheets are simple, consistent, and ideal for daily practice or assessments. Key Features: 60 no-prep printable pages20 horizontal addition problems per pageNumbers added range from 1–20Sums do not exceed 40Clean, easy-to-read layoutAnswer key included for quick gradingHow to Use: These worksheets are flexible and suitable for: Morn