Curated OER
Not So Snappy 4
In this order of operations (i.e., addition, subtraction, multiplication, division) worksheet, students solve 4 word problems demonstrating their understanding of the concept.
Wyzant
Wyzant: Simplifying Multiple Signs Worksheet
Dealing with multiple positive and negative signs in an algebra equation can be a challenge for some students. This inter-active quiz from WyzAnt provides 20 multiple-sign equations and their answers for students to test their knowledge.