Printable Vertical Addition Worksheet | Grade 1 Math

This worksheet provides targeted practice for first-graders learning vertical addition. Through 32 sequenced problems, learners build confidence and accuracy adding single and double-digit numbers, including those that require regrouping. It is an ideal resource for reinforcing foundational arithmetic skills.

At a Glance

• Grade: 1 · Subject: Math
• Standard: CCSS.MATH.CONTENT.1.NBT.C.4 — Add within 100, including two-digit and one-digit numbers.
• Skill Focus: Vertical Addition
• Format: 3 pages · 32 problems · Answer key included · PDF
• Best For: Independent practice, homework, or formative assessment.
• Time: 20–30 minutes

What's Inside

This three-page PDF resource contains 32 vertical addition problems organized into four distinct parts. The layout is clean and spacious, giving students room to show their work. A complete three-page answer key is included for easy grading or self-checking, making it a comprehensive and ready-to-use tool for any first-grade math classroom.

Skill Progression

The worksheet follows a gradual-release model to support student learning.

• Guided practice: Part 1's 8 problems focus on basic single-digit addition (e.g., 5 + 3) to build confidence with the vertical format.
• Supported practice: Parts 2 and 3 add 12 problems with bigger numbers and regrouping (e.g., 9 + 7, 15 + 5), providing a scaffolded transition.
• Independent practice: The final 12 problems in Parts 3 and 4 allow students to apply their skills independently across a mix of problem types.

This I Do, We Do, You Do structure ensures all learners can access the material.

Standards Alignment

This worksheet aligns with CCSS.MATH.CONTENT.1.NBT.C.4, which requires students to add within 100 using place value strategies. This resource focuses on the standard algorithm for addition. The progression also supports kindergarten standard CCSS.MATH.CONTENT.K.OA.A.1 by starting with single-digit sums. Both codes can be copied into lesson plans, IEP goals, or curriculum maps.

How to Use It

This resource is flexible. Use it for independent practice after a direct instruction lesson, or assign it as homework. For formative assessment, observe students during Part 3 ("Challenge Time") to identify regrouping errors. Most students can complete the worksheet in 20-30 minutes.

Who It's For

Designed for first-grade students, this also works as review for second graders or an extension for advanced kindergarteners. The clear progression provides implicit differentiation. Pair with a place value anchor chart to support students struggling with regrouping.

This vertical addition worksheet delivers structured practice aligned with CCSS.MATH.CONTENT.1.NBT.C.4, guiding students toward mastery of adding within 100 using place value strategies. The development of procedural fluency, which this worksheet promotes through focused repetition, is a critical foundation for higher-order mathematical thinking and problem-solving. According to the `NAEP`, proficiency in operations and algebraic thinking in the early grades is a strong predictor of future success in mathematics. This resource directly supports that goal by offering a clear, sequential path from simple single-digit sums to more complex double-digit addition with regrouping. By providing 32 distinct practice opportunities, the worksheet helps solidify the crucial connection between conceptual understanding and procedural skill, an evidence-based balance advocated by educational researchers such as `Fisher & Frey (2014)`. It serves as a reliable and effective tool for teachers to build, reinforce, and assess this essential arithmetic skill.