If you're not clear on the process, these two are difficult.
Difficulty: Pretty easy, although most kids would rate it a Medium.
Standard instructions for this series: No calculator allowed. Express answers in reduced form. Rationalize denominators. Radicals must be reduced. All numbers are base ten unless otherwise specified. Do not approximate radicals or π. Leave such answers as 1025π or √39, for example. Source: UVM Math Contest 2013
answer 31, answer 32. Published 5/2.