Across
- 2. A statement of money owed for goods or services provided.
- 3. A repeated design or recurring sequence in data.
- 6. A rule that says you can change the grouping of numbers in addition or multiplication without changing the result.
- 7. A document showing what you bought and how much you paid.
- 11. A reduction in the usual price.
- 13. An extra amount added to the cost of goods or services.
- 14. Extra money given for good service.
- 15. A number that, when used in an operation with another number, leaves the other number unchanged.
Down
- 1. A rule that lets you multiply a sum by multiplying each addend separately and then add the products.
- 4. A method of thinking that helps to make sense of things and solve problems.
- 5. A rule that says you can change the order of numbers in addition or multiplication without changing the result.
- 8. A conclusion reached based on evidence and reasoning.
- 9. Drawing a specific conclusion from general information.
- 10. Something that is accepted as true without proof.
- 12. An operation that reverses the effect of another operation.