- Plane Geometry
- Problem Solving (Misc.)
Civil engineers design and build all sorts of infrastructure projects, such as bridges, buildings, roads and railways. Civil engineers must be precise and technical, creative and flexible to ensure...
- Plane Geometry
- Solid Geometry
The tangram is an ancient Chinese puzzle consisting of seven flat geometric shapes. These shapes, called tans, include one square, one parallelogram and five right isosceles triangles which are all...
- Proportional Reasoning
- Sequences, Series and Patterns
- Solid Geometry
March 23 is National Puppy Day! Solve the problems below about two of the best things, math and puppies. Rufus the poodle is 1 year old and currently eats 1 dog biscuit per day. Every year, the number...
- Plane Geometry
The radius of circle N is 3 inches, and the radius of circle O is 4 inches. What is the radius of circle P whose area is the sum of the areas of circles N and O? The formula for the area of a circle...
- General Math
- Percents and Fractions
- Proportional Reasoning
- Solid Geometry
A town in South Dakota decides to have an “End of the Summer” pool party and invites all of the households in the town that have school aged children. Twenty-seven households are invited to the party...
- Probability, Counting and Combinatorics
The holidays are here, and it’s not uncommon for offices and classrooms to do a gift exchange. These often work as follows: the names of all participants are put into a hat, and everyone draws a name...
- Number Theory
- Probability, Counting and Combinatorics
- Problem Solving (Misc.)
- Solid Geometry
The weekend has just begun, and Derek wants to build a snowman either on Saturday or Sunday, but he can only build a snowman if it snows. There is a 1/2 probability that it snows on Saturday, and a 1...
- Probability, Counting and Combinatorics
- Problem Solving (Misc.)
Troy, Elliott and Shaun are three contestants on a game show. In one of the rounds of the game show, the 3 contestants have a chance to spin a wheel up to two times in a row to try to get the highest...
- General Math
- Percents and Fractions
- Probability, Counting and Combinatorics
Sun City earned its name because it rarely rains there. In fact, it rains only 54 days each year there, on average. What percent of the days in 2023 is it expected to rain in Sun City? Express your...
- Probability, Counting and Combinatorics
The Walton and the Brady families plan to vacation together in an 8-bedroom vacation home. John and Olivia will bring six children — boys, Jason, Ben and Jim-Bob, and girls, Mary Ellen, Erin and...