Math Crossword Puzzle

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Across
  1. 2. 7*(5+3)
  2. 4. 9^2-17
  3. 5. 10^3/25
  4. 10. solve 3x+6=21
  5. 11. 5*(8-3)
  6. 13. 3*7
  7. 16. 2^5
  8. 17. three-fourths of 32
  9. 20. one-half of (48-16)
  10. 21. sqrt(144)+5
  11. 23. 7^2
  12. 24. 3*4
Down
  1. 1. 4*7
  2. 3. 3^2+4
  3. 4. 9*7
  4. 6. solve x-15=21
  5. 7. 6+5
  6. 8. solve 4x=28
  7. 9. (4^3-8)/8
  8. 12. solve 2x+14=50
  9. 14. three-fourths of 20
  10. 15. absolute value of -18
  11. 17. (6+4)^2/5
  12. 18. 7+7
  13. 19. 25-6
  14. 22. sqrt(196)-4