CONTEST FORMAT
 
  • Students will have 15 problems to solve in 30 minutes.
  • Problems are marked as either "1 pt" or "2 pts".
  • While a "1 pt" problem is worth 1 point, a "2 pts" problem is worth 2 points.
  • All answers are integers between 0 and 9.
  • Students will not be allowed to use calculators.
  • Each prize goes to exactly one contestant. In case of ties, the following rules apply:
    • Starting from the last question the answers of the contestants are checked.
    • At the first different answer, the student who has the correct answer is ranked above the other.
    • If all the answers are same, the ranking will be determined by drawing lots.


Sample Questions (Previous years' problems can be found at the archive page)

  1. (1 point) The number of days in the last six months of the year is how many more than 180?
  2. (1 point) Find the number:
    1-2+3-4+5-6+7-8+9
  3. (1 point) During a sale, the price of a book is reduced by 25%. If the new price of the book is $4.50, what is the original price?



  4. (1 point) Evaluate the expression:
     12 x (1/3+1/4+1/6)
  5. (2 points) What is the last digit of the number?
    (0 + 1 + 2 +…+ 7 + 8 + 9) + (10 + 9 + 8 +…+ 3 + 2 + 1)

  6. (2 points) Leonardo Jr. wants to go from point A to point B. How many different routes can he take if he can only move to the right or up along the drawn segments?
                                 

     

Answers

1) 4    2) 5    3) 6    4) 9    5) 0    6) 6