e/Mathematical challenges

Information
has gloss	eng: Mathematical challenges generally refer to more basic mathematics such as that experienced in elementary or junior high school, but can extend to any realm of the study. It is commonly accepted that mathematics is a difficult area of study. Even so, it is generally agreed that the difficulty experienced when one attempts to master a topic leads to meaningful, long lasting, rewards. There is a long list of mathematics competitions throughout the world.
lexicalization	eng: Mathematical Challenges
instance of	(noun) the quotient of two rational numbers fraction