Across
- 4. consisting of an equal symbol between two expressions
- 6. to make two sides equal
- 7. value for an unknown quantity that makes the equation true
- 8. putting numbers in place of letters to calculate the value of an expression
Down
- 1. a symbol for a value we don't know yet. It is usually a letter like x or y
- 2. operation opposite operations that undo each other to return to the starting number
- 3. an order of operation used in mathematics
- 5. answer to a multiplication problem