Converting Units

Multiplying by one

An interactive lesson with 6 steps, about 5 minutes: you predict, drag and solve, with instant feedback on every answer. It runs in your browser and needs JavaScript.

What you’ll learn

• Converting means multiplying by fractions equal to 1.
• Arrange the factors so unwanted units cancel.
• Squared units: square the factor. Cubed units: cube it.

Steps

1. Multiply by one
2. Highway speed
3. Two speedometers
4. Seconds in a day
5. Squared units
6. Filling a pool