7th Grade Common Assesment

Ken has saved $120 in his bank account. Which of the following situations leave Ken with a balance of $0?

• Spending $120 to go on a trip

• Earning $120 mowing lawns

• Buying 2 coats that cost $120 each

• Buying a bike that costs $120

12 - (-23)

-21 - 11

At 5:00 a.m., a parking lot had 16 cars already parked in it. Throughout the course of the day, 48 more cars entered and parked in the parking lot. Which situation would result in a difference of 0 for the cars exiting the lot for the day?

• 16 cars exit the parking lot

• 32 cars exit the parking lot

• 48 cars exit the parking lot

• 64 cars exit the parking lot

Which statement best describes a situation in which opposite quantities combine to make 0?

• A hot air balloon used propane to fly 50 feet higher, then used weights to fly 50 feet lower.

• A farmer mowed 5 inches off his grass one week, then it grew 4 inches the next week.

• A child grew 1.5 inches taller one year, then 1.5 inches taller the next year.

• A scuba diver swam to a location 25 feet below sea level, then she swam 8 feet deeper.

On a number line, what is the unit distance between –11 and 7?

• 4 Units

• -77 Units

• 18 Units

• 9 Units

On Monday, the value of a stock was $38.25. On Tuesday, the stock decreased in value by $5.75. Which expression describes the value, in dollars, of the stock after the change in value on Tuesday?

• 38.25 + (–5.75)

• 38.25 – (–5.75)

• 5.75 + 38.25

• 5.75 – 38.25

Leilani has $5.50. Her mother gives her $2.75, and her sister pays her back $1.80 that she had borrowed. Leilani goes to the store and spends $3.89. How much money does she have left?

• $2.56

• $13.94

• $10.05

• $6.16

Mary takes a flight from Florida to Alaska. In Florida, the temperature is 101°F, while in Alaska, the temperature is

–11°F. What is the difference between the temperatures in Florida and Alaska?

Ike and Brian live in a tall apartment building. Ike’s bedroom window is 52 feet above the ground. Brian's bedroom window is 79 feet above the ground. Which expression represents the distance, in feet, between their windows?

• |52−79|

• 52−79

• 52+79

• |52+79|