Killian is using integer tiles to add 7+(−2) . She uses the steps below.Step 1: Step 2: Step 3: Step 4: 7+(−2)=2 In which step did Jillian make a mistake? Explain in your own words how to correct Jillian's work and what the correct answer is. NOTE: To receive full credit on this question, you must do three things:1. State the step in which Jillian made a mistake.2. Explain how to correct Jillian's work.3. State the correct final answer.

Answer 1

1. Step of the Mistake: Jillian made a mistake in Step 4, where she concluded that \( 7 + (-2) = 2 \).

2. How to Correct Jillian's Work: To correct Jillian's work, we need to correctly perform the operation of adding a negative number. When adding a negative number, we effectively subtract its absolute value from the original number. In this case, when we add \( 7 + (-2) \), we subtract 2 from 7: \[ 7 + (-2) = 7 - 2 = 5 \]

3. Correct Final Answer: The correct final answer is 5.