Across
- 3. Opposite operation
- 7. Does not contain an equal sign
- 8. Operation used when a letter and a number are next to each other
Down
- 1. Operation that looks like a fraction
- 2. Means to multiply
- 4. Two expressions set equal to one another
- 5. An unknown value
- 6. Number
- 9. Separated by addition and subtraction signs