#### Challenge Yourself. Be Awesome.

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# Skill

## Mathematics

EngineeringMathematicians decode the universe and discover its secrets hidden in numbers. We design puzzles and create visualizations to help explain these wonders to others.

### 15 Challenges

Easy

Tell a math joke

Mathematics

Easy

Popular

Guesstimate the number of stars in the universe

Astronomy

Medium

Count on an abacus

Mathematics

Medium

Teach a math trick

Mathematics

Hard

Write a logic puzzle

Mathematics

Medium

Make 3d polyhedra

Mathematics

Medium

Make string art

Mathematics

Medium

Measure something tall with a clinometer

Mathematics

Medium

Photograph and label the golden ratio

Mathematics

Medium

Make an infographic

Mathematics

Medium

Scale a drawing with a grid

Mathematics

Medium

Create a homemade math tool

Mathematics

Medium

Make art with fractals

Mathematics

Medium

Make fractions with food

Mathematics

Hard

Design a probability game

Mathematics