These Addition 0–20 Practice Worksheets are designed to help young learners build confidence and fluency with horizontal addition problems. Ideal for Kindergarten and Grade 1 students, these worksheets are easy to follow, making them perfect for independent work, homework, or math centers.

Key Features:

• 30 printable worksheets with horizontal addition problems
• Each page includes 16 practice problems
• Numbers being added range from 0 to 20
• Sums are no greater than 40, making it manageable for beginners
• A clean, no-clutter layout helps students focus
• Answer key included for easy grading or self-checking

How to Use:

• Use for morning work, math warm-ups, or bell ringers
• Great for independent practice or small group stations
• Can be used as homework, review sheets, or quick assessments
• Perfect for special education and remedial math sessions

Build essential addition skills with this no-prep, print-and-go resource!

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By Page Count:

Addition Worksheets – Free

Addition Worksheets – 12 Pages

Addition Worksheets – 20 Pages

Addition Worksheets – 40 Pages

Addition Worksheets – 50 Pages

Addition Worksheets – 60 Pages

Addition Worksheets – 70 Pages

Addition Worksheets – 80 Pages

Addition Worksheets – 90 Pages

Addition Worksheets – 100 Pages

Related resources:

Addition Worksheets Vertical – 30 Pages

Addition Worksheets Vertical/Horizontal – 30 Pages

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Happy teaching!