Challenging and addicting – Sumaze! 2 Review

I'm a high school math teacher and didn't expect to be very challenged by fractions, decimals, and percents, but I was pleasantly surprised and ended up staying up late to play it. However I think Fractions 2 #10 is unsolvable. I ask the developer to check that one and make sure it's correct because I'm stuck and cannot go on.
Review by Mathnerdjet on Sumaze! 2.