Across
- 3. A smaller set inside a larger set.
- 5. It means all of them.
- 6. The sign of addition.
- 8. The sign of subtraction.
- 9. The result of subtraction.
- 11. It’s a science dealing with numbers.
Down
- 1. Result of addition.
- 2. A value that doesn’t change.
- 4. An answer of a problem.
- 7. A number that can be positive,negative or zero.
- 10. It means same value.