Grade 7 | Unit 5: Rational Number Arithmetic | End-of-Unit Assessment (B)

Select all expressions whose value is negative.

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7.NS.A.1.b

7.NS.A.2.b

7.NS.A.3

Select the true statement.

• The distance between the heights of the whale and the plane is -10,460 feet.

• The difference in height between the whale and the plane is 10,460 feet.

• The difference in height between the whale and the ship is -1,040 feet.

• The distance between the heights of the whale and the ship is 1,040 feet.

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7.NS.A.1.c

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7.NS.A

Calculate the value of each expression.

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7.NS.A.1

Solve each equation.

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7.EE.B.4.a

Lin went hiking on five different weekends. The table shows the elevation changes in feet for each of her five hikes. Fill in the missing numbers.

Hike	Initial Elevation	Elevation Change	Final Elevation
Hike 1	768	-96	672
Hike 2		82	20
Hike 3	62	-100
Hike 4	354		129
Hike 5	-20	-40	-60

Explain what each of the numbers -20, -40, and -60 tells you about hike 5.

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7.NS.A.1

7.NS.A.3

A scuba diver is diving at a constant rate when her team on the surface requests a status update. She looks at her watch which says her elevation is 18 feet below sea level. 8 seconds later, her elevation is 20 feet below sea level. At what rate is her elevation changing? Use a signed number, and include the unit of measurement in your answer. How many more seconds until she reaches her goal depth of 50 feet? Explain or show your reasoning. How many seconds before her team requested an update was the diver at the surface of the water? Explain or show your reasoning.

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7.NS.A.2

7.NS.A.3