Here's a set of open number lines for use in solving problems. More
Open Number Lines Explained - The Classroom Key
Mandy's Tips for Teachers: Strategies for Addition (Freebie!)
Open Number Line Strategy for Addition Subtraction FREEBIE! Eight practice sheets introducing and practicing this Common Core math strategy.
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OPEN NUMBER LINE STRATEGY FOR ADDITION AND SUBTRACTION FREEBIE - TeachersPayTeachers.com
Open Number Lines are great for place value, addition, subtraction and fractions. These free math workmats can be printed once and used repeatedly. Great way to save paper!
Strategies for teaching addition and subtraction using open number lines, a Common Core 2nd grade math skill