Lesson Plan
Subtraction Sleuths Unite Lesson Plan
Students will master multi-digit subtraction with regrouping by solving themed detective case problems, accurately subtracting numbers up to four digits in real-world contexts.
This lesson builds foundational computational skills and confidence by framing subtraction as detective work, making practice engaging and relevant to everyday tasks like shopping and budgeting.
Audience
Time
Approach
Materials
Prep
Prepare Materials
10 minutes
Step 1
Introduction
5 minutes
Step 2
Guided Practice
10 minutes
Step 3
Independent Practice
10 minutes
Step 4
Reflection & Wrap-Up
5 minutes

Slide Deck
Subtraction Sleuths Unite
Lesson Objective
Mystery Case
Key Vocabulary
Regrouping Review
Guided Practice #1
Guided Practice #2
Independent Practice
Reflection & Wrap-Up

Worksheet


Answer Key

