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Staircase Towers: Jumps of 1

Start with a 1 × 1 square. Add squares to make a staircase with jumps of 1 each time, like this:

• 1 Complete this table for Staircase Towers: Jumps of 1.

  Length of Bottom Edge (centimeters)	Area (square centimeters)	Arithmetic Expression
  1	1
  2	3
  3	6
  4
  5
  6
  7
  8
  9
  10

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