Great for all ages
My 5 and 6 year old love. My 5 yr old is learning and practicing elementary math concepts (Easy level) before he even starts school. He thinks its fun. I turn the sound off, so hes not focused on the time. But the short timed sessions keep him interested. The harder levels keep me on my toes as well.
A Mothers viewpoint about
ArithmeTick - Math Flash Cards, v1.5