Think About Subtracting Nothing

Unit 3: The Action of Subtraction
Lesson 1 of 6

Objective: Students will be able to subtract 0, 1 and 2 from a number and apply this as 0 less than, 1 less than, and 2 less than within 20.

Big Idea: The big idea of this lesson is thinking about subtraction facts with 0, 1, and 2 as amounts less than a number.

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