Adding Tens on an Open Number Line: Write the Equation #2

Get more practice adding multiples of 10 on an open number line with this colorful worksheet! Designed for first-grade math learners, this worksheet features four two-digit addition problems, each of which is modeled on an open number line. Using the number line model, learners will need to determine both addends and the sum and then write an addition equation to match the number line. Each addition equation has an addend that is a multiple of 10 and a sum that is within 100. 

This math worksheet supports student learning by giving them practice using a concrete model to visualize finding the sum of two numbers. Get more targeted practice with the other two worksheets in this series: Adding Tens on an Open Number Line: Write the Equation #1 and Adding Tens on an Open Number Line: Write the Equation #3.