10 Great Fourth Grade Apps You Need Now
The pressure's on! This supercharged math game is a fast-paced drill disguised as a classic arcade-style game that kids won't be able to stop playing.
The name of the game is to review basic math facts in reverse: the clock starts, and players are given an “objective” number as a series of other numbers and operations rain from the top of the screen. Your mission: find as many factors and/or solve for as many variables as you can before the clock runs out!