Subtracting with Ten Grids

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Subtraction

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At a Glance

SubjectSubtraction

Original Prompt

Create a worksheet for 1st graders to practice subtracting numbers within 20 using ten grids and breaking apart numbers

This lesson focuses on teaching students to subtract numbers within 20 by utilizing ten grids and the strategy of breaking apart numbers. The process begins with a worked example to demonstrate how to subtract 7 from 15. Students are guided through the steps of crossing out parts of the ten grid to visualize the subtraction. They are then prompted to try similar problems on their own, breaking down numbers and using ten grids for clarity. The document includes practice problems, a strategy box for students to show their thinking, and challenges to encourage deeper understanding. It concludes with an exit ticket that asks students to solve another subtraction problem and explain their method, reinforcing their learning experience.