TiltCards, now with fractions, is an easy and convenient set of electronic flash cards for basic arithmetic. Designed for children in elementary school, TiltCards offer three skill levels for testing addition, subtraction, multiplication, and division.The concept and use of TiltCards is simple and intuitive. First select the skill level by pressing one button, and one more button to select the arithmetic function to test. Then simply rotate your iPhone or iPod Touch in landscape orientation for the question, and then rotate your device back to portrait orientation for the answer. To move to the next question, again just rotate your device to landscape.