Mixed Operations addition and subtraction quiz online for kids. In this exercise students will have to solve problems that combine addition and subtraction problems. In some cases they will figure out combinations that result to specific numbers as per the demands of this problem. This exercise is matching, gap-fill and MCQ. Play around solving these problems and improve math skills on mixed operations studied in 2nd, 3rd, 4th, 5th grades. This activity will further review skills in addition and subtraction that were studied earlier. Remember to head over to the worksheets section for more printable tests.