MATH NERD

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Across
  1. 5. 0.001
  2. 7. repeatedly subtract the same number from a given number.
  3. 8. symbol for addition
  4. 9. part after the whole number
Down
  1. 1. ____fingers and two thumbs
  2. 2. first order of operation
  3. 3. set of negative and positive whole numbers including zero
  4. 4. repeatedly add the same number a given number of times.
  5. 6. 7-11=____4
  6. 8. per every hundred