Problems of the Week May 24 - 28, 2020

May 24, 2020 | Killarney

Solve the Problem of the Week for your grade level!

Get a Problem of the Week ballot and submit your entry before closing time on Thursday. All correct solutions will receive 5 extra punches on their Reward card at the start of their next session in the math learning centre. If you are using our online math tutoring platform, you can also submit your entry during your next online math learning session.

Grades 2-4: Jack is sitting in a swivel chair facing north. He spins a half turn clockwise, then a quarter turn counterclockwise, then a full turn clockwise, and finally a three-quarter turn counterclockwise. In which direction is Jack facing now?

Grades 5-6: Grace is buying a new charger for her phone and wants to know which one has the longer cord: a black charger with a 70-inch cord or a white charger with a 180-centimetre cord. An inch is 2.54 centimetres. Which cord is longer? By how much? Give your answer in centimetres.

Grades 7-8: The number of ants in Karen’s ant farm doubles every day. On Sunday, there are 12 288 ants in the farm. When was the last day when there were fewer than 1000 ants

Grades 9 and up: Will has four boxes of candles. One box is full, and each consecutive box has one fewer candle than the last. If Will has 450 candles in total, how many are in the full box?