有乐趣，当你学习和练习加法，减法，乘法和除法。 选择一个没有时间压力的选择题测验的经典测验。或自己，挑战与速度的挑战，其中最高分的速度和准确性计数。 大的孩子，没有挫折或失败，如果你猜错了，你可以再次尝试，直到您选择了正确的答案。每一轮不同的是，不同的问题和答案不同的选择。在这项比赛中，选择正确的答案，猜测正确的第一次尝试赚取最高分点被授予。在速度的挑战，为每个不正确的猜测有一个5秒的处罚。 加法，减法，乘法和除法 •定时和非定时测验 •全球领先 •可选的声音效果 下载为您的孩子+数学技能，加强基本的数学能力。为自己或下载，以提高你的速度，浓度，并重点。 Have fun while you learn and practice addition, subtraction, multiplication and division. Choose classic Quiz for a multiple-choice quiz with no time pressure. Or, challenge yourself with the Speed Challenge, where quickness and accuracy count for top scores. Great for kids, no frustration or failure—if you guess wrong, you can try again until you choose the correct answer. Each round is different, with different problems and different choices for answers. In the Quiz, points are awarded for choosing the correct answers—earn the most points by guessing correctly on the first try. In the Speed Challenge, there is a 5-second penalty for each incorrect guess. • Addition, subtraction, multiplication, and division • Timed and untimed quizzes • Global leaderboard • Optional sound effects Download A+ Math skills for your child to reinforce basic math proficiency. Or download for yourself, to sharpen your speed, concentration, and focus. New in Release 1.1: Added "mixed mode" of all math operations, improved global leaderboards, minor bug fixes and UI improvements.