I would certainly not consider myself a math person. If you asked my children who could help them with their math homework, I would be last on their list. I do however, love this math app.
5 Dice is a free math app that helps student practice order of operations. Students can choose from several levels and must find the target number by working backwards - they are given the answer but not the equation. The program also provides a whiteboard feature so students can work out problems. Finally, the app allows up to 5 devices to join together so students can compete against their classmates.