Hard
math/mental math quiz/hard/

Welcome to the hard level. Strap yourself in for some edgy math problems. Yay. Bring it on...

When you start, a JavaScript pop-up box will appear. Answer the question in the field. If you answer correctly, you can go on to the next question or explore somewhere else in eclass3net. If you didn't answer correctly, the question will pop up again. If you want to exit, you have to answer correctly...

Choose a game number to start.