Current Problems of the Week

Primary

At the Fair - September 11

dice

How can you get 45 points to win the prize?

Algebra

Kristina's Code - September 18

Use the four equations that Kristina wrote to figure out her two unknown numbers.

Latest Solution: My Three Dogs

Math Fundamentals

Sports Weigh In - September 18

scale and balls Find the weight of the soccer ball, the tennis ball, and the baseball.

Latest Solution: Sharing Birthdays

Geometry

Congruent Rectangles - September 11

Seven congruent rectangles are arranged to form a larger rectangle. Given the area of the larger rectangle, find its perimeter.

Latest Solution: What's the Angle?

Pre-Algebra

Buying Cola - September 11

cola Where should Chuck shop to get the most cola? Is this the best buy?

Latest Solution: Cork Costs

Trig & Calculus

Is It a Midpoint? - September 18

cubicCan you prove that what's happening in this picture will always happen with any cubic function?

Latest Solution: Preparing for the Test


© 2017 NCTM. All Rights Reserved. http://mathforum.org/pows/