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Lesson Plan
Subtraction Strategies
Get your students synthesizing various subtraction strategies as they work with a partner to solve word problems. This lesson can be used alone or with the lesson plan **Show Me the Money! Two-Digit Subtraction.**
Download lesson planThis lesson can be used as a pre-lesson for the Show Me the Money! Two-Digit Subtraction lesson plan.
Grade
Subject
View aligned standards
This lesson can be used as a pre-lesson for the Show Me the Money! Two-Digit Subtraction lesson plan.
Objectives
Academic
Students will be able to show different ways to subtract multiples of 10.
Language
Students will be able to make sense of subtraction story problems and describe steps to solve them using visuals, manipulatives, and partner support.
Introduction
(5 minutes)
- Ask students to give you a thumbs up if they have ever bought a stamp, and comment that your friend Susana loves to collect stamps from all over the world. Show students examples of different stamps. Build background knowledge about how stamps are used to send mail, but can also be collected.
- Tell students the following story problem: "Susana got $30 from her grandma for her birthday. Susana spends $20 on stamps for her collection. How much money does Susana have left?"
- Prompt students with questions about the context of the problem. For example, "How much money does Susana get for her birthday?" and "What words in the problem tell us which math operation we need to solve the problem?" Write what students know about the problem on the board.
- Ask students to retell the problem in their own words to a partner.
