# Adding Four Three-Digit Numbers

Unit 6: Three-Digit Addition and Subtraction
Lesson 4 of 13

## Big Idea: Students develop, use, and share their own strategies for adding four three-digit numbers.

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Standards:
Subject(s):
Math, Differentiation, Number Sense and Operations, addition, regrouping, place value strategies, addition algorithm, turn and talk
48 minutes

### Caitlin Vaughan

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