Boolean AND Arithmetic

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Across
  1. 4. This not That
  2. 5. Two words for a mixed search
  3. 6. To Times Something
  4. 7. A way to add two words together
  5. 8. This Or That
Down
  1. 1. A way to work math stuff out
  2. 2. A computer symbol or letter
  3. 3. A AND,NOT,OR operator