Maths crossword

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Across
  1. 2. A triangle has ____ sides
  2. 3. One ten plus six units
  3. 5. Ten units is equal to ____ ten
  4. 7. One more than twenty nine
  5. 9. One ten plus zero units
  6. 10. Ten plus ten
Down
  1. 1. A square has ____ sides
  2. 2. One more than nineteen
  3. 3. One ten plus seven units
  4. 4. Two less than eighty two
  5. 6. Nine tens
  6. 8. Five tens
  7. 11. One less than eleven