Maths Puzzle

12345678910
Across
  1. 1. Symbols used to group expressions.
  2. 4. A letter used for an unknown number.
  3. 7. A math sentence with an equal sign.
  4. 8. number multiplied by a variable.
  5. 10. number showing repeated multiplication.
Down
  1. 2. To find the difference between numbers.
  2. 3. The answer of multiplication.
  3. 5. A fixed value that does not change.
  4. 6. The answer of division.
  5. 9. A single number, variable, or expression part.