Add it up, calculator plus quiz machine = improved test scores! The Math Whiz is a cool looking full-function student calculator-packed with a drill and practice quiz mode that quizzes kids on addition, subtraction, multiplication and division at 8 levels each! Enter your answer to the quiz problem and get immediate feedback to right or wrong answers. You can even press the challenge button for a special thinking skills game. Also a great send home tool for those falling behind. This multi-purpose math aid includes 10 Math Whiz units in the set. Each unit requires 3 "AAA" batteries, (not included). Let Math Whiz improve those math test scores for about the cost of a calculator!