Grade 7 | Unit 5: Rational Number Arithmetic | Check Your Readiness (A)

A dolphin is at the surface of the ocean. What is the dolphin’s elevation? The dolphin dives 20 feet below the surface of the ocean. What is its new elevation?

• 0 feet

• -20 feet

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6.NS.C.5

Place and label the following numbers on the number line.

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OFF

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6.NS.C.6

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6.NS.C.7

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6.NS.C.7

Andre received and spent money in the following ways last month. For each example, write a positive or negative number to represent the change in money from his perspective. His uncle gave him $25 as a present. He earned $18 dollars tutoring. He spent $10 on a book. What does 0 mean in this situation?

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6.NS.C.5

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6.NS.C.6.b

6.NS.C.8