Adding Tens on an Open Number Line: Write the Equation #3

Give students more practice adding multiples of 10 on an open number line with this addition worksheet! Designed for first-grade math learners, this worksheet features four two-digit addition problems modeled on open number lines. Learners will need to use the number line models to determine both addends and the sum for each problem. Then they will write an addition equation to match each number line. Each addition equation has an addend that is a multiple of 10 and a sum that is within 100. 

The last in a series of three, this math worksheet supports student learning by offering a concrete model to help them 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 #2. Or, for an additional challenge, have students try Open Number Line Addition Within 100: Write the Equation #1.