Modeling adding and subtracting integers on the number line. Student page print or digital option. This two page worksheet can be used as homework, classwork (either individually or in small groups), guided instruction, or an assessment. It is in landscape mode so the number lines are larger and more usable for students. The first problem is shown as a guide for students and models adding and subtracting integers using lines with arrows always starting at zero. There is one three-step proble