Addition and subtraction balance equations quiz

Addition and subtraction balance equations quiz online for kids to review. This exercise contains equations on both sides of the equal to sign. Each equation leads to a number which is the same. The caveat though is that one equation is missing a number, hence students have to find the missing number in order to make the equation balanced. Gain basic algebra skills for 2nd, 3rd, 4th, 5th grades by solving the problems in this quiz.