Maths Crossword Puzzle

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Across
  1. 3. After the ones place comes tens. What comes after the tens place?
  2. 6. A shape with three sides and three vertices (points)
  3. 7. Six + thirteen
  4. 8. If a number is not divisible by two, it is
  5. 9. 6 divided by 2
Down
  1. 1. A shape with 4 straight sides of equal length and 4 angles of equal size
  2. 2. When two or more numbers are added together
  3. 4. A two-digit prime number starting with E
  4. 5. 84 - 64
  5. 6. When something is halved, it is divided by