This first-grade math worksheet is the third installment in the series and offers more practice in performing addition within 100 using open number lines. The worksheet is presented on a single page and includes an additional four addition equations illustrated on number lines. Students must use the information provided on the open number line to write and solve the corresponding equation to complete each problem. With number line jumps of tens and ones, this worksheet provides a valuable opportunity for students to gain experience in using open number lines to solve two-digit addition problems. For additional targeted skills practice, similar worksheets titled "Open Number Line Addition Within 100: Write the Equation #1" and "Open Number Line Addition Within 100: Write the Equation #2" are available.
