【實用解謎app】Concentration|最夯免費app-綠色工廠好玩App

By yourself or against a friend, match whole numbers, shapes, fractions, or multiplication facts to equivalent representations. Practice with the clear panes or step up the challenge with the windows closed. How many socks can you win?

This app was developed for children in grades preK–5 by Illuminations. It is also available as an online activity along with many other free math resources for children at http://illuminations.nctm.org.