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Math Practice

Hands-on arithmetic lessons - type a formula, run it, and get checked instantly. Order of operations, percentages, averages, and compound interest.

Basic 0/8 complete

Math Practice

Eight short, hands-on math lessons. Unlike the code lessons elsewhere in Practice, there's no function to write and no boilerplate to read - the editor is just a blank line, and you type a formula straight into it, the way you'd type one into a calculator. Order of operations, percentages, and compound interest to start; then three advanced rungs - the quadratic formula, solving for time with logarithms, and a tiered-pricing capstone. Each lesson gives you a task and a Run button.

Your result is checked by rounding it to 4 decimal places and comparing it to the expected answer - you don't need to match decimal formatting exactly, just get the math right. ^ is exponent (10^2 is 10 squared), and the usual functions (sqrt, sin, cos, and friends) are available if a lesson needs them.

Start with lesson 1. You can leave and come back any time - your code is saved locally.

Lessons

8 total
  1. 01 Order of operations
  2. 02 Percentage of a number
  3. 03 Discount price
  4. 04 Average of a list
  5. 05 Compound interest (capstone)
  6. 06 The quadratic formula
  7. 07 How many years to reach a target
  8. 08 Tiered pricing (capstone)