Exponents and Scientific notation

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Across
  1. 3. 0.24 (4+2)/5^2
  2. 4. 1 1.5x6-4x2
  3. 6. of exponents rules for operations with
  4. 7. 64.64 0.8^2+4^3
  5. 8. 23 15+(7-5)^3
  6. 10. 2.46x10^2
  7. 11. exponents
  8. 12. 2.38 (8/10^2)+2.3
  9. 13. 0.018 1.8/10^2
Down
  1. 1. 28 (1.4x10^2)/5
  2. 2. numbers without a lof of zeros
  3. 3. notation Write larger numbers into
  4. 5. 12.9 12-3.8+4.7
  5. 6. 6.74x10^3
  6. 9. 15 5x71-340
  7. 10. (10+2)^2 -1