Subtracting Tens Worksheet | Grade 1 Essential Math

This Grade 1 math worksheet provides targeted practice for subtracting multiples of ten from other multiples of ten. Students develop number sense by identifying operations, finding missing values, and solving real-world word problems. By focusing on the relationship between addition and subtraction, learners build the foundational fluency required for multi-digit arithmetic.

At a Glance

• Grade: 1 · Subject: Math
• Standard: CCSS.MATH.CONTENT.1.NBT.C.6 — Subtract multiples of 10 from multiples of 10 in the range 10-90
• Skill Focus: Subtracting Tens
• Format: 2 pages · 8 problems · Answer key included · PDF
• Best For: Independent practice or formative assessment
• Time: 15–20 minutes

This two-page PDF includes eight distinct tasks designed to reinforce place value concepts. The first section requires students to determine whether addition or subtraction was used to reach a specific sum. The second section utilizes a visual motif to present missing-number equations. Finally, a contextualized word problem helps students apply their mental math skills to a practical scenario.

Zero-Prep Workflow:

1. Print: Select the two-page PDF and print enough copies for your class in under 30 seconds.
2. Distribute: Hand out the worksheets as a warm-up or exit ticket activity.
3. Review: Use the included answer key to provide immediate feedback or allow students to self-correct. Total teacher preparation time is under three minutes.

The primary focus is CCSS.MATH.CONTENT.1.NBT.C.6, which asks students to subtract multiples of 10 in the range 10-90. This resource also supports understanding that in adding or subtracting two-digit numbers, one adds or subtracts tens and tens. Both standard codes can be copied directly into lesson plans, IEP goals, or district curriculum mapping tools.

Use this worksheet during the independent practice phase of a lesson on place value. It serves as an excellent formative assessment tool to check if students understand that subtracting tens only changes the tens digit. Alternatively, assign the word problem section as a collaborative think-pair-share activity. Expect students to complete the full set in approximately 20 minutes.

This resource is designed for first-grade students mastering basic subtraction and second-grade students requiring a quick review. It is particularly helpful for English Language Learners due to the clear visual layout and minimal text. Pair this worksheet with base-ten blocks or a hundreds chart to provide concrete support for struggling learners.

According to the RAND AIRS 2024 report on elementary mathematics, structured practice with multiples of ten is a critical precursor to understanding regrouping and multi-digit subtraction. This worksheet aligns with those findings by isolating the tens place, allowing students to focus on the logic of the operation without the cognitive load of ones-place calculations. By moving from simple operation identification to missing-number problems and finally to a contextualized word problem, the resource follows a research-backed scaffolding model. This progression ensures that students do not just memorize facts but develop a flexible understanding of how numbers interact within the base-ten system. Educators can use the 8 included tasks to gather evidence of student mastery regarding CCSS.MATH.CONTENT.1.NBT.C.6, which is essential for meeting end-of-year benchmarks in Grade 1. The inclusion of an answer key further supports instructional efficiency and student self-regulation.