- Algebraic Expressions and Equations
- General Math

Define x @ y as (x3 − y)/x, for distinct positive integers x and y. What is the value of 5 @ 10? Evaluating 5 @ 10 yields (53 − 10)/5 = (125 − 10)/5 = 115/5 = 23. Define a # b as a2 − b2 − ab, for...

- Algebraic Expressions and Equations
- General Math

Define x @ y as (x3 − y)/x, for distinct positive integers x and y. What is the value of 5 @ 10? Evaluating 5 @ 10 yields (53 − 10)/5 = (125 − 10)/5 = 115/5 = 23. Define a # b as a2 − b2 − ab, for...

- Measurement
- Plane Geometry

In honor of Veteran’s Day, people around the country are flying American flags. For many people, finding flags to buy in stores has been next to impossible due to the great demand. Therefore, many of...

- 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...

- Percents and Fractions
- Plane Geometry
- Probability, Counting and Combinatorics

It’s Autumn, and that means leaves are falling! Amber’s house occupies 2650 ft2 in the middle of a 50-foot by 80-foot parcel of land, and the leaves that fall cover the ground all around her house. If...

- Algebraic Expressions and Equations
- Plane Geometry
- Problem Solving (Misc.)

Bethany and her family are attending the Funville Town Fall Festival, and the first thing they do is get in line for the Maize (corn) Maze. When Bethany gets to the entrance of the Maze she is facing...

- General Math
- Percents and Fractions
- Plane Geometry
- Problem Solving (Misc.)
- Proportional Reasoning

In preparation for Thanksgiving dinner, Mrs. Cobble decided to get a new tablecloth for the dining room table. Her rectangular table measures 3.5 feet by 6 feet, and she would like the tablecloth to...