Math Galaxy 8th Grade is a comprehensive and very useful review and practice app that covers all of the math standards from Common Core in this grade. It offers quick, clear review text and videos and an infinite set of practice problems for each skill.
Overview 7th Grade Math Common Core is a comprehensive review and practice app that covers important math skills. Topics include rational numbers, ratios, proportions, percents, and more. In the review mode, students get a step-by-step explanation of how to solve problems. They can access unlimited practice problems and earn time playing a maze-like video game. …
The free version of Mathway provides students with ready answers to math and chemistry problems at nearly any level. A subscription must be purchased to access step-by-step solutions that some students may need to understand the process of solving the problems, though.
Khan Academy’s app provides a comprehensive library of topics and skills that support Common Core goals. It includes a wealth of information particularly on middle school and high school classes, as well as useful topics for college students and adults.
CK-12 offers a comprehensive system of review resources and practice questions that will help students get ahead in school. The app does a thorough job of covering vital ideas in elementary math as well as middle and high school high school math and science.