# Problem of the Week for December 10th to December 14th

Dec 9, 2023 | SW Calgary

Mathnasium of SW Calgary - Problem of the Week!

Be sure to enter at the start of your next session at the Math Learning Centre.

Problem of the Week for Grades 3 and 4: Jack builds a sand castle with 8 different sand molds. The smallest mold holds 1½ cups of sand. The next mold holds 3 cups of sand. The third mold holds 6 cups of sand, and the fourth holds 12 cups of sand. If the pattern continues, then how much sand does the biggest mold hold?

Problem of the Week for Grades 5 and 6: Aria, Brett, and Chelsea bounce a beach ball between them 100 times. Aria bounces the ball to Brett, Brett bounces the ball to Chelsea, Chelsea bounces the ball to Aria, and the pattern continues. Who bounces the ball the 100th time?

Problem of the Week for Grades 7 and 8: Ava collects 4 more than twice as many sea shells as Ben. Ben collects 1 fewer than half as many as Carla. Carla collects 200 sea shells. How many sea shells does Ava collect?

Problem of the Week for Grades 9 and above: A circular beach umbrella with an area of 4π square metres casts a circular shadow with a circumference of 8π metres. What is the circumference of an umbrella at the same height that casts a shadow whose area is 64π square metres? (Pretend umbrellas are flat circles instead of domes.)

LAST WEEK WINNERS OF PROBLEM OF THE WEEK:

Grades 3 and 4:An almost impossible problem to solve last week as no one seems to be familiar with a six sided "die". Jason solved the problem and was the only correct ballot to be submitted. Well done Jason, now come and choose a Fabulous \$10 Gift Card of your choice. Everyone try again this week!! Come on, give your brain a workout

Grades 5 and 6: Another tough problem this past week saw Kendell submitting the correct solution and being the only correct ballot to be submitted. Great work Kendell, now come and collect a Wonderful \$10 Gift Card of your choice. Everyone be sure to devote time this week to solving the problem!! Become a Mathnasium Mathlete

Grades 7 and 8: Well another tough problem saw only one correct solution submitted and Maya was the only correct ballot to be drawn. Fantastic work Maya, now come and choose a Terrific \$10 Gift Card of your choice. Everyone try again this week. Mathnasium – Home of the Power Math Workout

Grades 9 and above: A difficult problem this past week and Nils managed the only correct solution to be submitted. Excellent work Nils, now come and choose a Fantastic \$10 Gift Card of your choice. Everyone try again this week!!Show what you can do Mathlete!

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