Open Number Line Addition Within 100: Write the Equation #1

Practice addition within 100 using open number lines with this first-grade math worksheet! This appealing one-page worksheet features four addition equations shown on number lines. To complete each problem, students will use the work shown on the open number line to help them write and solve the matching equation. Featuring number line jumps of tens and ones, this worksheet is a great way to provide students with experience using an open number line to solve two-digit addition problems. For more targeted skills practice, check out Open Number Line Addition Within 100: Write the Equation #2 and Open Number Line Addition Within 100: Write the Equation #3. And for related practice that allows students to complete the number line themselves, don't miss Adding Two-Digit Numbers on an Open Number Line #1.