Solving Addition and Subtraction Problems
aligned to 3.5a
Learning Objective
I can show one-step and two-step addition and subtraction problems within 1,000 using pictures, number lines, and equations.
Lesson Flow
Watch Video
Guided Notes
Key concepts students will learn:
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We can use pictures, number lines, and equations to help us check our thinking and solve problems in more than one way.
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An equation is a mathematical statement that uses an equal sign to show that two expressions are equal.
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On a number line, numbers increase from left to right, which is usually addition, and numbers decrease from right to left, which is usually subtraction.
Practice
5 questions • Multiple choice & Short answer
Exit Ticket
“Maria has 235 beads. She buys 143 more beads. Show how many beads Maria has now using a picture, strip diagram, or number line, AND an equation.”
Teacher Guide
Get the complete package:
- Answer keys for all questions
- Differentiation strategies
- Extension activities
- Printable student handouts
