spread sheet crossward!!!

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Across
  1. 4. To arrange or set out
  2. 5. This is an intersection point of a column and a row
  3. 8. This is a shortcut provided for using the SUM function
  4. 9. This is a function which calculates backward to obtain an input that would result in a given output
Down
  1. 1. If you put together the first four letters of alphabet what do you get
  2. 2. It is used in maths it has two lines crossing each other
  3. 3. What has letters in a spreadsheet
  4. 4. This is a rule expressed in symbols
  5. 6. Denoting numbers
  6. 7. Opposite of a column