Kids will want to practice their math on this portable skill-building ELA that turns math into a video game. MathShark quizzes eight different skill levels in addition, subtraction, multiplication, division, fractions, decimals, and percentages, AND works as a full-function calculator with the press of a button. Problems are displayed on the LCD screen either vertically or horizontally. Answers receive immediate feedback with colorful flashing lights and tones. Sets are timed, and the elapsed time plus a message appear at the end of each set.