Printable Math Drills: Subtraction Worksheet | Grade 1

Mastering basic arithmetic requires consistent and focused practice. This Grade 1 subtraction worksheet provides 31 comprehensive drills designed to build mathematical fluency and confidence. Students will progress from simple vertical subtractions to more challenging horizontal equations and real-world word problems. This structured approach ensures that learners develop a deep understanding of subtraction concepts and outcomes.

At a Glance

• Grade: 1 · Subject: Math
• Standard: CCSS.MATH.CONTENT.1.OA.C.6 — Subtract within 20 and demonstrate fluency for subtraction within 10
• Skill Focus: Subtraction Fluency and Word Problems
• Format: 3 pages · 31 problems · Answer key included · PDF
• Best For: Daily math warm-ups and skill reinforcement
• Time: 15–25 minutes

Inside this three-page PDF, you will find 31 subtraction tasks. The first page features a notes section for student brainstorming. The second page contains 25 vertical drills focused on single-digit fluency. The final page introduces four horizontal challenges and two word problems. A complete answer key is provided for easy grading.

• Guided Practice: The notes section allows teachers to model subtraction strategies before students begin the 25 vertical drills.
• Supported Practice: Four horizontal problems challenge students to translate vertical fluency into a different format within 20.
• Independent Practice: Two real-world word problems require students to apply subtraction logic to solve situational narratives independently.

This sequence follows the gradual-release model, moving from modeling to independent application.

Standards Alignment

The primary standard addressed is CCSS.MATH.CONTENT.1.OA.C.6, which requires students to "Add and subtract within 20, demonstrating fluency for addition and subtraction within 10." Additionally, the word problems support CCSS.MATH.CONTENT.1.OA.A.1. Both standard codes can be copied directly into lesson plans, IEP goals, or district curriculum mapping tools.

How to Use It

Use this worksheet as a formative assessment during a unit on subtraction to observe student fluency. It also works effectively as a timed math drill to improve speed and accuracy after direct instruction. During the activity, watch for students who still rely heavily on finger counting for single-digit problems. Expect most learners to complete all 31 tasks within 15 to 25 minutes.

Who It's For

This resource is designed for Grade 1 students mastering basic subtraction but serves as an excellent review for Grade 2 learners. It provides necessary scaffolding for students with IEPs through the included notes section. Pair this worksheet with an anchor chart showing subtraction keywords or physical manipulatives for students who require concrete support.

The CCSS.MATH.CONTENT.1.OA.C.6 standard focuses on subtraction fluency within 20, a critical milestone for early elementary learners. By engaging with 31 targeted problems, students transition from basic single-digit calculations to solving horizontal equations and contextual word problems. Research from the ScienceDirect TpT Analysis (2024) indicates that repetitive, scaffolded practice in mathematics significantly improves long-term retention of basic operations. This worksheet provides a structured environment for students to master the plain-English skill of finding the difference between two numbers accurately. Educators can utilize these drills to identify specific areas where students struggle, such as regrouping or interpreting word problem language. The inclusion of an answer key allows for immediate feedback, which is essential for correcting misconceptions early. By mastering these foundational skills, students build the necessary confidence to tackle more complex multi-digit arithmetic in subsequent grade levels.