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  2. 10 Hard Math Problems That Even the Smartest People in the ...

    www.aol.com/10-hard-math-problems-even-150000090...

    Since you've known these numbers since grade school, stating the conjectures is easy. When two primes have a difference of 2, they’re called twin primes. So 11 and 13 are twin primes, as are 599 ...

  3. List of unsolved problems in mathematics - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    Many mathematical problems have been stated but not yet solved. These problems come from many areas of mathematics, such as theoretical physics, computer science, algebra, analysis, combinatorics, algebraic, differential, discrete and Euclidean geometries, graph theory, group theory, model theory, number theory, set theory, Ramsey theory, dynamical systems, and partial differential equations.

  4. Millennium Prize Problems - Wikipedia

    en.wikipedia.org/wiki/Millennium_Prize_Problems

    The question is whether or not, for all problems for which an algorithm can verify a given solution quickly (that is, in polynomial time), an algorithm can also find that solution quickly. Since the former describes the class of problems termed NP, while the latter describes P, the question is equivalent to asking whether all problems in NP are ...

  5. Are You Smarter than a 5th Grader? - Wikipedia

    en.wikipedia.org/wiki/Are_You_Smarter_than_a_5th...

    The main fifth-grade questions are removed, and the only one from that grade was the bonus question. Contestants must start at the first grade and cannot skip a grade. At least one question from each grade must be answered or have used a cheat on, 1 to 3, before they can roam the board freely. The "Save" has been removed.

  6. Fourth grade - Wikipedia

    en.wikipedia.org/wiki/Fourth_grade

    Fourth grade (also 4th Grade or Grade 4) is the fourth year of formal or compulsory education. It is the fourth year of primary school . Children in fourth grade are usually 9–10 years old.

  7. American Mathematics Competitions - Wikipedia

    en.wikipedia.org/wiki/American_Mathematics...

    -10 Questions 1968–1972: 35-5 Questions 1973 Annual High School Mathematics Examination 35 1974–1982: 30-5 Questions 1983–1999 American High School Mathematics Examination 30 AIME introduced in 1983, now is a middle step between AHSME and USAMO. AJHSME, now AMC 8, introduced in 1985 2000–present American Mathematics Competition 25 -5 ...