- 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...