Printable Capacity Worksheet | Grade 3 Math

This resource offers targeted practice for students learning liquid capacities. It focuses on adding and subtracting volumes in liters (L) and milliliters (mL), with regrouping. Students move from computation to applying skills in word problems, building fluency and problem-solving abilities.

At a Glance

• Grade: 3 · Subject: Math
• Standard: CCSS.MATH.CONTENT.3.MD.A.2 — Solve one-step word problems involving addition and subtraction of liquid volumes.
• Skill Focus: Adding and Subtracting Liquid Capacities (L/mL)
• Format: 4 pages · 16 problems · Answer key included · PDF
• Best For: Independent practice, concept reinforcement, or homework.
• Time: 25–40 minutes

What's Inside

This four-page worksheet contains 16 focused problems. The first two pages present eight computational problems with liters and milliliters. The next two pages feature eight one-step word problems using the same skills in context. A complete answer key is provided for all 16 questions for quick grading.

Skill Progression

The worksheet follows a structured model to build student capability.

• Guided Practice: The first eight problems focus on the mechanics of adding and subtracting liters and milliliters. These isolate the calculation skill, serving as a foundational check on computation with regrouping.
• Supported Practice: The transition to word problems provides a contextual scaffold. The problems are straightforward, asking for a single operation.
• Independent Practice: The final problems encourage full independence, requiring students to interpret and solve.

Standards Alignment

This worksheet is directly aligned with Common Core standard CCSS.MATH.CONTENT.3.MD.A.2, which requires students to solve one-step word problems involving liquid volumes. The tasks provide concrete practice for the addition and subtraction components of this standard. The code can be copied directly into lesson plans or curriculum maps.

How to Use It

Use this as independent practice after direct instruction on liquid capacities. The 16 problems are great for formative assessment, showing who struggles with computation versus application. It also serves as an effective homework assignment to reinforce learning (25-40 min).

Who It's For

This worksheet is designed for Grade 3 students learning about metric liquid volume. It is also suitable for Grade 4 students needing a review. The clear task separation helps teachers identify specific difficulties. For struggling students, pair this with a conversion anchor chart (1 L = 1000 mL).

This worksheet provides focused practice on solving one-step word problems involving liquid volumes, a key requirement of standard CCSS.MATH.CONTENT.3.MD.A.2. By asking students to add and subtract quantities in liters and milliliters, it builds procedural fluency within a contextual framework. Research supports using such structured tasks to move students from understanding to application. According to Fisher & Frey (2014), a gradual release of responsibility is critical for skill acquisition. This resource embodies that principle, first isolating the calculation and then embedding it within word problems. The 16 distinct problems offer sufficient repetition to reinforce the skill, providing teachers with clear evidence of student mastery for lesson planning.