Ann made a 33-step staircase using 1818 toothpicks as shown in the figure. how many toothpicks does she need to add to complete a 55-step staircase?

To answer this we will do the following:-

1818 ÷ 33 ≈ 55.09
55.09 toothpicks per stair. 

55.09 × 55 = 3029.95

So, to build a 55-step stair case Ann will need ABOUT 3029.95 tooth picks.

Hope I helped ya!! 

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