Across
- 3. when it's flipped.
- 5. multiplied by a variable
- 8. two or more terms.
- 9. a letter that stands for an unknown number.
Down
- 1. product of 10
- 2. an expression base and an exponent.
- 3. 1/a.
- 4. the set of whole numbers and their opposites.
- 6. does not divide.
- 7. steps to solve it.