NS.1

Which question is the SAME as
8 - (-7)        ?

• -8 - (-7)
• 8 + 7
• 8 - 7
• -8 + 7

Tags

CCSS.7.NS.A.1B

The temperature on January 2 was -6 degrees. The temperature on February 8 was 12 degrees. What was the difference between the two temperatures?

• 18 degrees
• 6 degrees
• -18 degrees
• -6 degrees

Tags

CCSS.7.NS.A.1C

You wrote two checks for $30 each. Then, you withdrew $35. Finally, you deposited $20. What was the overall change in your account?

• $75
• $-55
• $5
• $-75

Tags

CCSS.7.NS.A.3

What is the value of –6.25 – 3.15 – 2.14?

• A.   -11.54
• B.   -11.44
• C.  –7.26
• D.  –5.24

Tags

CCSS.7.NS.A.1C

Naomi is playing a game in which numbers are added and subtracted. She would like to know when she will have zero points. Which expression is equal to zero?

• -5 + (-5)

• -5 - 5

• 5 - (-5)

• -5 - (-5)

Tags

CCSS.7.NS.A.1B

Ann opened a savings account with an initial deposit of $250. Which combination will result in a zero balance in Ann's account?

• deposit $20 in the first week and withdraw $270 in the second week.

• deposit $270 in the first week and withdraw $20 in the second week.

• deposit $20 in the first week and withdraw $250 in the second week.

• deposit $250 in the first week and withdraw $20 in the second week.

Tags

CCSS.7.NS.A.1C

Jessica went deep sea diving. She makes the first stop on her descent at 25 meters below the surface of the water. From that point she dives down further, stopping every 5 meters. If she makes 4 additional stops,which number represents her position, relative to the surface of the water?

• 45
• 20
• ‒20
• ‒45

Tags

CCSS.7.NS.A.3

Which situation results in a final value of exactly zero?

• A student earned $7.50 for each of 8 hours of work. He used $60 of this money to buy school supplies.
• The temperature outside was 15° below 0 at 7:00 a.m. The temperature rose 3° in each of the next 4 hours.
• A scuba diver descended for 2.4 minutes at a rate of 30 feet per minute. The diver ascended for 1.2 minutes at a rate of 15 feet per minute.
• A baker received an order to bake 120 cupcakes. The baker completed the order by baking 24 cupcakes every 30 minutes over a period of 5 hours.

Tags

CCSS.7.EE.B.3

Which situation does NOT describe a final value of 0?

• A balloon rose to a height of 605 feet above the ground. It then dropped 500 feet and then dropped another 105 feet.
• The temperature at 9 a.m. was –9° F. During the next 3 hours it rose 8 degrees and then rose an additional 2 degrees.
• After the first round in a game Jack’s score was –11. He then scored 5 points in the next round and an additional 6 points in the third round.
• Keisha’s bank account had $450 at the beginning of the week. She deposited $200 on Monday, withdrew $500 on Tuesday and withdrew an additional $150 on Wednesday.

Tags

CCSS.7.NS.A.1C

Which situation can be modeled by the expression 60 + (–40) + 80?

• Mae ran a distance of 60 meters north from a starting point, turned around and ran 40 meters south, and then turned around again and ran 80 meters north to a stopping point. The expression represents her distance from the starting point, in meters.
• The temperature at noon in Veronica’s city was 60°F. By 8 p.m., the temperature had dropped to 40°F. By noon the next day, it had increased to 80°F. The expression represents the total temperature change over a 24-hour period.
• Jennifer opened a new savings account on Thursday with a deposit of $60. She made a deposit of $40 on Friday and a withdrawal of $80 on Saturday. The expression represents her new account balance.
• Karla processed 60 boxes for shipping on Monday, 40 on Tuesday, and 80 on Wednesday. The expression represents the total number of boxes she processed on these three days.

Tags

CCSS.7.NS.A.1C