Equations and expressions

123456789101112
Across
  1. 4. Unknown amount of something
  2. 7. Has an equal sign
  3. 9. Add, subtract, divide, multiply
  4. 10. Each
  5. 12. Take Away
Down
  1. 1. No equal sign
  2. 2. Split
  3. 3. A number without a variable attached
  4. 5. Increase
  5. 6. Same
  6. 8. A number with a variable
  7. 11. single numbers and variables