Unit 7 mid-term quiz

Ms. Jeffery is scuba diving and she is 20 feet below and she swims 15 feet towards the surface. How many more feet does she have to swim to reach the surface?

• 20 feet

• -20 feet

• -5 feet

• 5 feet

Answer explanation

-20+15= -5

5 feet below the surface, and she needs to swim up 5 feet.

Which number line shows

 $-\frac{1}{4}$   and its opposite?

• 
• 
• 
• 

Comparing integers -1 ____ -11

• <
• >
• +

Compare integers using <, >, = -5 ___ -4

• <
• >
• =

The left side of this number line is:

• Positive.

• Negative.

• Neither positive nor negative.

Desmond's monthly Netflix subscription costs $10.  If he charges it to his credit card each month for 5 months without making any payments, what will his debt be?

• -$14
• -$2
• -$45
• -$50

At 7:00 pm the temperature was 40F.  If the temperature dropped steadily at a rate of 6 degrees per hour, what was the temperature at 11:00 pm?

• 22 degrees
• -16 degrees
• 16 degrees
• 64 degrees

Put the following numbers in order from smallest to largest.
6, -2, -8, 8, 2
Choose the correct answer.

• 8,-8, 2, -2, 6
• -8,-2, 2, 6, 8
• 8, 6, 2, -2, -8
• 8, -8, 6, 2, -2

The right side of this number line is:

• Positive.

• Negative.

• Neither positive nor negative.

Reorder the following integers from least to greatest:

• -3

• 15

• -10

• -1

• 10