number line

# 1 More, 1 Less

Unit 10: Place Value
Lesson 9 of 16

## Big Idea: My class has been learning about place value and the meaning of tens and ones. This lesson will develop knowledge of adding or subtracting one from a 2-digit number.

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Standards:
Subject(s):
Math, Place Value, addition, ones, tens, Tens and Ones
30 minutes

### Jennifer Moon

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