- Logic
- Number Theory
Addition and subtraction may sound easy for middle schoolers, but what if you are missing some digits? What if you want to maximize or minimize a result? This plan focuses on some common types of...
- Measurement
- Solid Geometry
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- Measurement
There's no activity sheet, but we know you will enjoy this video. It's the 100th MATHCOUNTS MINI Lesson! We're taking a break from uploading new Mini Lessons for a while, which makes this the perfect...
- Measurement
- Plane Geometry
- Proportional Reasoning
Understanding and applying ratios can be used in a variety of problems, from finding a missing measurement to determining scale between similar figures. Mathletes will solve problems using ratios...
- Number Theory
Mathletes will apply divisibility rules of various integers to simplify computation, better understand number composition and aid in problem solving. In the extension, Mathletes can prove why each of...
- Algebraic Expressions and Equations
- Number Theory
Download Activity Sheet Download Solutions
- Number Theory
Download Activity Sheet Download Solutions
- Number Theory
Download Activity Sheet Download Solutions
- Number Theory
Download Activity Sheet Download Solutions
- Algebraic Expressions and Equations
- Number Theory
Explore Modular Arithmetic by working with remainders to solve problems about very large numbers.