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Here are a few problems to keep your number sense sharp during the summer months. What is the greatest positive three-digit integer that is divisible by 5, 7 and 9? We know that any three-digit number...

Darcy has two part-time jobs during her summer vacation. She works part-time as a counselor at a local day camp, and she has another part-time job as a lifeguard at the community swimming pool. Darcy...

Every year on the third Monday of January, we celebrate Martin Luther King, Jr. Day. Dr. King was a civil rights activist whose passion and leadership led to great cultural changes in America. On Aug...

The scoring pattern used in a game of tennis can be confusing, as it doesn’t appear to follow the expected pattern. Tennis points go like this: Love (0 points), 15, 30, 40. You may be asking, “Why not...

Now that the 2022 State Competitions have passed, here are some problems the State level Mathletes solved during the competition! 2022 State Competition, Sprint Round, #6 While driving, Carl notices...

In June, MATHCOUNTS joined the Data Science 4 Every­one Commitment Campaign to build capacity for K-12 data science ed­ucation. As part of this commitment, MATHCOUNTS will create and share additional...

Summer Fun Camp enrollment costs 85 dollars each week per camper. Each camper may register for up to three of the optional workshops offered for an additional charge of $5.50 a week per workshop, or...

In these summer months, a common problem people suffer from is dehydration – not enough water in their body. Waiting until you feel thirsty is not a good indicator that it’s time to drink water. In...

Susanna and her family take a road trip from Washington, DC to Duck, NC. On the way, they stop for lunch in Richmond, VA, which was 106 miles from DC and 174 miles from Duck. They traveled at an...

Isabella went to the local ice cream shop with her three children, Marcos, Nina and Perry. Isabella and the kids each ordered a sundae with two scoops of ice cream and various toppings. A sundae with...