Mixed operations add and subtract quiz online. This is an interactive online trivia quiz in which children will review skills in mixed operations. There are problems in which kids are asked what number it is if they add ten more or they subtract ten less. Questions take the form of MCQ’s. Review your mixed-operations skills by taking this online quiz. Check your score at the end and keep practicing until you can successfully answer all the questions in this quiz. Have fun learning while at home and in the classroom. Since feedback is instant, educators can relax while children drive the learning process. This is a trivia quiz on mixed operations for kids in 1st, 2nd, 3rd and 4th grades.