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Kelly uses point p to represent the sum of 3.6 +(-2.4) on the number line.

3.6 + (-2.4) = p

Kelly says that point pis plotted to the right of both 3.6 and -2.4 on the number line because addition means you should move right on the

number line.

• Explain why Kelly's reasoning is incorrect.

• Explain how the location of p on the number line is related to the locations of 3.6 and -2,4 on the number line.

Determine the value of point p.

Enter your explanations and your answer in the box provided.

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Answer:

Kelly is incorrect because she added the two numbers on the number line that made no since.

If Kelly had worked through the problem

P would have equaled 1.2

3.6+(-2.4) = 1.2 which is what p equals

The value of P is 1.2

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