Worked examples
Two examples
Example 1
3.2 kilometers = ? meters
- Kilo- means 1,000: 1 kilometer = 1,000 meters.
- 3.2 × 1,000: move the point 3 places right.
Answer: 3,200 meters
Example 2
450 centimeters = ? meters
- Centi- means a hundredth: 100 centimeters = 1 meter.
- 450 ÷ 100: move the point 2 places left.
Answer: 4.5 meters
Where this is taught: Quiz 26: Units and Conversions, “Which way does the number move?”
The drill
Ten problems
This drill also has challenge problems. They use the same skill, set up the way the GED test sometimes sets up a problem, so that it looks new at first.
How many:
Type each answer, then press Check my answers at the bottom. Commas in large numbers are fine.Write each answer on the line. The answer key, with the reasoning, is on the last page.