Across
- 2. something that keeps going
- 5. the opposite of addition
- 7. the opposite of subtraction
- 8. the opposite of multiplication
- 10. to help find the constant
- 11. up and down
Down
- 1. equal
- 2. a number to another number
- 3. side to side
- 4. to add faster
- 6. to learn numbers
- 9. one is acute