Spreadsheets!

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Across
  1. 4. if you use this sign it reduces the number
  2. 6. opposite of columns
  3. 8. another word for box
  4. 9. without having a ... you cant work out anything
  5. 10. is found at the top of the spreadsheet and is lettered
Down
  1. 1. the slash (/) sign is used to represent it
  2. 2. '*' this sign is used to represent it
  3. 3. another word for spreadsheet
  4. 5. the opposite of subtraction is
  5. 7. seek allows you to alter the data used in a formula in order to find out what the results will be