Math - Let's See How Fast You Are Now!

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Across
  1. 2. The number of feet in an acre divided by 7260
  2. 4. Winner on come-out roll in craps!
  3. 5. 5-1
  4. 7. 27^(1/3)
  5. 8. A circle with a radius of 1.69 has what area?
  6. 10. [(1/2)/(1/2 * 2)] * 4
  7. 11. 5-3*5
Down
  1. 1. 125=__!
  2. 3. Rolling two dice, it's the most probable outcome
  3. 6. 4^0
  4. 7. Unlucky
  5. 9. (X-3)(X+4)=60; what's X (Not -9)