A+ Click K11 Math for students in grade 11 is a self-study app. The app features a set of 590+ challenging problems with the answers. The questions are based on the Common Core Standards in Math and go beyond by adding hundreds of meaningful practical problems and puzzles. The questions concentrate on understanding, spatial reasoning, usefulness, and problem solving rather than math rules and theorems. The problems include a short description and an illustration to help problem solvers visualize the model. The problems can be solved within one minute. The questions are sorted by six themes: arithmetic, algebra, geometry, data analysis, word problems and logic, and applied math. The question can be useful for exam preparation: SAT and GMAT. The problems are part of the free website www.aplusclick.com