Across
- 1. To join together sets to find the total or sum.
- 4. Something that is a fact; the opposite of false.
- 8. The sign used to show having the same value as or is the same as.
- 9. The sum of two parts.
- 10. Look at groups of objects, shapes, or numbers and see how they are alike or different.
- 12. To take away.
Down
- 2. The answer in a subtration problem.
- 3. One of the two parts joined to make the whole.
- 5. Basic facts using the same numbers.
- 6. The sign used to show subtraction.
- 7. Something that is not a fact; the opposite of true.
- 11. The symbol used to show addition.
- 12. The answer to an addition problem.