One of the most difficult concepts that students struggle with in mathematics is adding and subtracting integers. This happens for students from math foundations all the way to AP mathematics. Like fractions, this is a subject that students do not always grasp at the beginning of their exploration of mathematics, and therefore struggle with throughout their classes.
I wanted to offer some online resources that I have found to help students work through some of the difficulty of adding and subtracting integers. The first is a great overview of how integers fit into the scheme of all numbers. This tutorial can be found on HippoCampus.org and should be the first place a student starts in their exploration of adding and subtracting integers.
Next, there are some great free videos that can help students. The first two videos talk about adding and subtracting integers using tiles while the next two videos talk about using a number line.
Students can also practice their skills online. The following is a list of interactives that can help students:
I hope these are helpful for your students working through adding and subtracting integers.