🔤 Understanding Formulas

3 lessons — learn to read, use, and love math formulas!

Lessons

What Are Variables?

3 pages · letters that stand for numbers, plugging in values, 2n − 1

Patterns & Formulas

3 pages · what "…" means, finding patterns, writing formulas with n

Using Famous Formulas

4 pages · n², n×(n+1)÷2, sum of odd numbers, step-by-step practice

🖨️ Tip: Work through the lessons in order — each one builds on the last. Use Ctrl+P (or ⌘P) to print.