Addition 1–20 Worksheets | 70 Pages of Math Practice

This Addition 1–20 Worksheet Pack is designed to help young learners build a strong foundation in basic math. With 70 printable pages of horizontal addition problems, this resource is perfect for daily practice, math centers, assessments, or homework.

Each page contains 20 horizontal math problems using numbers between 1 and 20. All answers are less than or equal to 40, making it simple and manageable for early learners.

Key Features:

• 70 printable pages of addition practice

• 20 horizontal problems per page

• Numbers used: 1–20

• Answers are all ≤ 40

• Answer key included for quick grading

• Clean, easy-to-read layout

• Suitable for Kindergarten to Grade 1

• Ideal for classrooms, homeschool, tutoring, and remote learning

How to Use:

• Print and assign as daily warm-ups or exit tickets

• Use in math centers for independent practice

• Assign as homework or take-home review

• Use for quick quizzes or formative assessments

Help your students gain confidence in addition with this ready-to-use and easy-to-implement math pack!