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Table of Contents
Add Crossing 10 within 20
Subtract Crossing 10 within 20
Add within 40
Add & Subtract Crossing the 10 within 100
Add without Renaming
Subtract without Renaming
Add & Subtract without Renaming
Addition & Subtraction Connections
Even & Odd Values
Add & Subtract with #s Greater than 100
Learn about the Addition & Subtraction collection.
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