"...the first app I've reviewed that has been so addicting to me I couldn't stop playing long enough to write the review. It's also being played by all three of my children, in 6th grade, 3rd grade, and kindergarten, and I've even heard them fighting over the iPad for more Mathtopia+ time. I can guarantee no one in my house has ever fought over more time with flash cards." --Smart Apps for Kids. "Wickedly addictive!" Math Coach's Corner. "I found our 10-year-old 'sneaking' time on the iPad and playing it for fun." Apps for Homeschooling. Stamp math expressions with colorful answer tiles. Solve a tile-matching puzzle to advance. Earn stars and trophies as you get faster at recognizing equivalencies. The puzzle game play is similar to popular jewel swapping games but with multi-touch swap, enabling more complicated and challenging matching for addicts of tile-matching puzzlers. True addicts can match their skills against others on Game Center and unlock secret levels. Reduce stress while training the brain. Award winning, highly addictive, and entertaining math facts game: ° Children's Technology Review Editor's Choice Award 2013 ° Fun Educational Apps Top Pick ° PadGadget - Ten iPad Apps We Love ° SmartAppsForKids - Five Stars ° Minds in Bloom - Best Math App Ever Mathtopia achievements are life-long skills. This app has no ads or in app purchases. You can enjoy the same exciting game play in our free app "Mathtopia". The free app requires in app purchase to unlock some features. We hope you enjoy Mathtopia. Common Core and Grade Levels Alignments Addition and Subtraction: Kindergarten, First, and Second Grade CCSS.Math.Content.2.OA.B.2 Add and subtract within 20. By end of Grade 2, know from memory all sums of two one-digit numbers. Multiplication and Division: Third Grade CCSS.Math.Content.3.OA.C.7 Fluently multiply and divide within 100. By end of Grade 3, know from memory all products of two one-digit numbers. Multiplication and Division Modules. Mathtopia animations are powered by the Sparrow Framework. www.TopShelfLearning.com