- Percents and Fractions
- Plane Geometry
Today is Pi Day! Below are a few questions to celebrate. If June ate 1/4 of 2/3 of 1/2 of a pie, what fraction of the whole pie did she eat? Express your answer as a common fraction. To determine what...
- Plane Geometry
- Problem Solving (Misc.)
- Proportional Reasoning
The MATHCOUNTS Club sponsor at your school is planning a pizza party for the club’s 10 Mathletes to kick off the year. The local pizza place has medium and large as the two size options for ordering...
- Percents and Fractions
- Plane Geometry
- Probability, Counting and Combinatorics
- Solid Geometry
Ariel, Ollie and Eden are going trick-or-treating for Halloween, but first their parents are taking them to a costume store to pick out costumes. The store has 9 different costume options available –...
- Probability, Counting and Combinatorics
- Proportional Reasoning
- Solid Geometry
Did you know that May 20th is the official birthday of “blue jeans”? It was on May 20, 1873 that Levi Strauss and David Jacobs received patent number 139,121 from the US Patent and Trademark Office...
- General Math
- Plane Geometry
Temi’s analog clock, shown here, has an hour hand of length 9 in and a minute hand of length 15 in. When Temi’s clock strikes 3 o’clock, what is the length of the segment drawn from the end of the...
- Plane Geometry
- Probability, Counting and Combinatorics
Everyone knows that on July 4, 1776, the thirteen colonies declared their independence from Britain. On July 8, the Declaration of Independence was read aloud in Philadelphia, marking the first...
- Algebraic Expressions and Equations
- General Math
- Measurement
- Proportional Reasoning
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...
- Algebraic Expressions and Equations
- General Math
- Probability, Counting and Combinatorics
- Solid Geometry
In honor of Engineers Week, we’re posting a throwback to a sampling of previous years’ Future Engineers Problems of the Day. Join us next week for all new engineering-themed Problems of the Day for...
- Algebraic Expressions and Equations
- Probability, Counting and Combinatorics
- Statistics and Data
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...
- Probability, Counting and Combinatorics
On the game show Wheel of Fortune®, contestants spin a wheel, like the one shown here, to determine how much money will be won for solving the puzzle. What is the probability that a contestant spins...