Do your students struggle with adding integers with different signs? This foldable number line allows students to "see" the relationship between positive and negative numbers. This hands-on integer operations tool helps students visualize integer problems such as -12 + 5 and 7 - 12 where integers with opposite signs are being combined. Student directions for same-sign integers are also included on the back of the tool. This download contains a printable version that is built into a physical man