Fluent - Math Fluency 对比 Quick Mental Math 的使用情况和统计数据

Features: - Hundreds of randomly generated digital flashcards in Addition, Subtraction, Multiplication, and Division - Stages that help you commit facts to memory through repetition - Untimed Mode, a practice mode developed specifically so that you can choose problems that you want to work on and practice them at your own pace - Race Mode, a practice mode that allows learners to test their skills against the clock and see how quickly they can answer problems - 40 stages per operation that progress in difficulty - Customizable color themes - Fun skins for Peck the Duck, the Fluent mascot - Printable certificates that can be earned after completing all stages in an operation