Problem of the Week: Week 3 September 24, 2007
submit solutions to tubbsjac@nbed.nb.ca
If wish the solutions to past problems they are available upon request at the same email.

Grade 6
How many whole numbers between 0 and 200 are divisible by both 4 and 6?

Grade 7
How much greater is (0.1 + 0.01 + 0.001 + 0.0001 + 0.00001) than (0.02 + 0.002 + 0.0002 + 0.00002)?

Grade 8
The trees in a peach orchard were arranged in a square array with N columns and N rows. To enlarge the orchard by one row and one column to make a larger square, the owner bought and planted 29 more peach trees. How many trees are in the orchard after the enlargement?

Grade 9 Problem
What is the smallest product one could obtain by multiplying two numbers in the set {-5, -3, -1, 3, 4}?

Grade 10
For what value of x does the function f(x) = (2x - 5)2 take on its minimum value? Express your answer as a decimal.