Printable 2-Digit Addition Worksheet | Grade 2 Math

This worksheet provides targeted practice for second-grade students learning to perform 2-digit addition with regrouping. Through a structured sequence of 30 problems, learners will build procedural fluency and confidence in carrying over values from the ones to the tens place, a foundational skill for all future arithmetic.

At a Glance

• Grade: 2 · Subject: Math
• Standard: CCSS.MATH.CONTENT.2.NBT.B.5 — Fluently add within 100 using place value strategies.
• Skill Focus: 2-Digit Addition with Regrouping
• Format: 4 pages · 30 problems · Answer key included · PDF
• Best For: Independent practice, skill reinforcement, assessment
• Time: 20–30 minutes

What's Inside

This resource contains a four-page printable PDF worksheet designed for clear, focused practice. The student pages feature 30 addition problems systematically organized into sets of increasing complexity. A complete four-page answer key is also included, showing the correct solution for every problem, facilitating quick grading and student self-checking.

A Clear Path to Mastery

The worksheet uses a gradual-release model:

• Guided Practice: The first set includes a visual cue for the 'add ones, then regroup' process for the initial 6 problems.
• Supported Practice: The next two sets remove scaffolds, encouraging learners to apply the strategy across 12 more problems.
• Independent Practice: The final 'Mastery Set' presents 12 problems without categorization, requiring students to demonstrate consistent application of the regrouping skill.

This structure helps students move from understanding to fluency.

Aligned with Common Core Standards

This worksheet directly targets CCSS.MATH.CONTENT.2.NBT.B.5, requiring students to fluently add within 100 using place value strategies. It provides essential practice for this key second-grade standard. The standard code can be copied directly into lesson plans, IEP goals, or district curriculum mapping tools.

Classroom Implementation Ideas

Use this resource as independent practice after a lesson on regrouping or as a focused homework assignment. For formative assessment, observe students during the first set to spot errors in carrying the '1' to the tens column, allowing for immediate reteaching. Most students will complete the 30 problems in about 20-30 minutes.

Designed for Your Students

Primarily for second graders, this sheet also suits advanced first graders or third graders needing review. For students needing support, pair it with base-ten blocks to make regrouping concrete. It's a great follow-up to a lesson that used a place value anchor chart.

This resource provides structured practice for a critical gateway skill in early mathematics, as identified by numerous studies. Aligned with CCSS.MATH.CONTENT.2.NBT.B.5, this worksheet helps students fluently add within 100 using place value strategies, specifically focusing on regrouping. Research from the RAND AIRS (2024) report on foundational skills emphasizes that procedural fluency in multi-digit addition is a key predictor of success in later elementary math, including multiplication and fractions. The scaffolded design, moving from guided to independent problem-solving across 30 items, reflects best practices for skill acquisition. By providing clear, repetitive practice on this single concept, the worksheet helps build the automaticity necessary for students to tackle more complex mathematical reasoning, a finding consistent with analyses on effective instructional materials for early numeracy. This targeted approach ensures learners master the mechanics of regrouping.