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Add and . Describe your steps, then give the sum and its sign.
Case context: The integers are and . Both have the same sign.
Question: Add and . Describe your steps, then give the sum and its sign.
Sample answer: Add the absolute values: . Keep the shared sign, negative, so .
Key points:
- Add the absolute values of the two integers.
- Keep the sign shared by both integers.
Rubric: Full credit: adds absolute values, keeps the shared sign, and states the correct sum . Partial credit: correct sum but sign or steps unclear. No credit: incorrect sum or no explanation.
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Add and . Describe your steps, then give the sum and its sign.