Grade 3 Math Addition & Subtraction (decimals) Unit Plans | Alberta | 180 Days

Make teaching addition and subtraction of decimals simple, structured, and engaging with this complete Grade 3 Math Decimals Unit. This no-prep resource is designed to build strong number sense while helping students confidently work with decimal operations through hands-on practice, guided instruction, and differentiated activities.

Perfect for whole-class instruction, math centers, small groups, intervention, or homework, this unit provides everything you need to teach decimals in a clear, step-by-step progression aligned with Grade 3 math expectations.

Students will develop a deep understanding of decimals through visual models, scaffolded worksheets, practice pages, and formative assessments that reinforce learning at every stage.

Whether you’re introducing decimals for the first time or reinforcing skills, this unit saves you planning time while keeping students highly engaged.

✔ What’s Included:

• Step-by-step lesson progression for teaching decimals

• Addition and subtraction of decimals practice worksheets

• Visual models and place value supports

• Differentiated student activities

• Math centers and hands-on practice tasks

• Word problems involving decimals

• Formative and summative assessments

🎯 Perfect For:

• Grade 3 math classrooms

• Guided math instruction

• Math intervention groups

• Homework or independent practice

• Review and reinforcement units

• Early finishers or enrichment

💡 Skills Covered:

• Understanding decimal place value

• Adding decimals with models and standard algorithms

• Subtracting decimals accurately

• Solving real-world decimal word problems

• Strengthening number sense and fluency

This Grade 3 Math Addition & Subtraction (decimals) resource makes planning easy while ensuring full curriculum coverage.

• full year Grade 3 Math curriculum unit plans

• Grade 3 Addition & Subtraction (decimals) daily lessons

• All learning outcomes practiced daily

• Alberta new curriculum kindergarten mathematics

• USA common core knowledge curriculum

Check the preview to see exactly what’s included! Preview this Unit Plan

Check out our complete list of resources!

K-6 ELA & Math Unit Plans & Lesson Plans Education Rocks Catalogue

Format: PDF - Opens to Google Slide.

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