## Student Thinking Video - Section 4: Independent Practice

Student Thinking Video

# Adding Big Numbers with Butterflies

Unit 9: Adding and Subtracting: Base Ten
Lesson 3 of 5

## Big Idea: How can 30+30 help you solve 30 + 31? That question drives this lesson as students make connections between number sentences.

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Standards:
Subject(s):
Math, Number Sense and Operations, subtraction, addition properties
50 minutes

### Amanda Cole

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