Maths Crossword

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Across
  1. 2. Half a century.
  2. 6. The extra leap day.
  3. 8. A mathematical snake.
  4. 9. The number of years in a decade.
  5. 10. The number of seasons.
  6. 12. Lead role in Stranger Things.
  7. 13. The number of children in a quintuplet set.
Down
  1. 1. Four squared.
  2. 3. The number of foods in a chinese takeaway "Trio"
  3. 4. Square root of one hundred.
  4. 5. A right angle.
  5. 7. A baker's dozen.
  6. 11. The number of months in a year.