2024 AMC 10B Problem 5AMC 10 Step by Step
Name: Date: September 13, 2026
Sequences & Series · difficulty 2 of 5 · about 3 min · position P1-10
In the following expression, Melanie changed some of the plus signs to minus signs: When the new expression was evaluated, it was negative. What is the least number of plus signs that Melanie could have changed to minus signs?
- A)
- B)
- C)
- D)
- E)