Brain Work Out

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Across
  1. 3. how many eggs in half a dozen?
  2. 5. 168 divided by 3
  3. 7. what is 4 x 5?
Down
  1. 1. 96-48
  2. 2. how many angles is a quarter of a circle?
  3. 4. what is 10% of 300?
  4. 6. what is the square root of 9?
  5. 8. what is 6 x 2?