Worked examples
Two examples
Example 1
50 =
- Any number except 0 to the power 0 is 1.
Answer: 1
Example 2
2−3 =
- A negative exponent means one over the positive power: 123.
- 23 = 8.
Answer: 18
Where this is taught: Quiz 31: Rules of Exponents, “The ladder down: ONE and FLIP”
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 a whole number, or a fraction with a slash, like 1/8. Then press Check my answers at the bottom.Write each answer on the line, in simplest form. The answer key, with the reasoning, is on the last page.