Adding Using an Open Number Line

A file or printable companion for Boom Cards

by Kiki's Kubby

Price: 300 points or $3 USD


Grades: 1,2,3

Description: This product includes addition problems that students can answer using open number lines. It includes sheets that can be laminated or put in dry erase pockets for students to practice using an open number. The equations include the following: Add Tens to Tens Add Ones to 2-Digit Numbers Add Tens to 2-Digit Numbers Add Tens and Ones on an Open Number Line CCSS.MATH.CONTENT.2.NBT.B.5 Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction. CCSS.MATH.CONTENT.2.NBT.B.9 Explain why addition and subtraction strategies work, using place value and the properties of operations.