International Junior Math Olympiad Grade2_11 on Day:.........Month:..........Year:...........


Total Core =

  • Question 1: What is 56 added to itself eleven times, that is , 56 + 56 + 56 + 56 + 56 + 56 + 56 + 56 + 56 + 56 + 56
  • Question 2: Simplify 150 - 55 - 34 - 21 - 13 - 8
  • Question 3: Find B if (B - 1) x 5 = 20
  • Question 4: Simplify 23 + 21 + (23 - 21) + (23 - 21) + (23 - 21) + (23 - 21) + (23 - 21)
  • Question 5: How many ways can you cut, using a straight line, a regular hexagon into two (2) equal parts? Show below is one way.
    • image of question 5

  • Question 6: Using Pi = 22/7, what is the perimeter of a circle with radius 42 cm?
  • Question 7: A regular polygon is a polygon whose sides and angles have equal measure. A regular pentagon has a side length of 5, a regular hexagon has a side length of 4, and a regular octagon has a side length of 3. Which of the three polygons has the largest perimeter?
  • Question 8: A triangle is cut as shown below (not drawn to scale). If the perimeter of the triangle is 10 cm and the length of the cut is 4 cm, what is the total perimeter of the two new shapes formed?
  • Question 9: Using Pi = 22/7, find the area between two concentric circles (i.e. circles having the same center) if the larger circle has radius 12 cm and the smaller circle has radius 5 cm.
  • Question 10: Teacher Mai is painting her classroom. She has orange, green, and purple paint. She plans to use one color as a base coat and stencil a design with another. How many different ways can she do this?