2015 AMC 10A Problem 3AMC 10 Step by Step
Name: Date: September 13, 2026
Basic Counting · difficulty 2 of 5 · about 2 min · position P1-10
Ann made a 3-step staircase using 18 toothpicks as shown in the figure. How many toothpicks does she need to add to complete a 5-step staircase?
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