Lesson 06: Subtracting Rational Numbers | Unit 5: Rational Number Arithmetic

Multiple Choice

How much warmer is 82° than 40°?

• 30°
• 42°
• 50°
• 60°

Multiple Choice

How much warmer is 82° than -40°?

• 122°
• 60°
• 100°
• -10°

Multiple Choice

How much warmer is $$-40^\circ$$ than $$82^\circ$$ ?

• 122 degrees colder
• 40 degrees warmer
• -122 degrees
• 122 degrees warmer

Multiple Choice

The Emperor penguin keeps its egg warm through the winter by holding it on top of its feet and under a brood pouch. The temperature inside the pouch is $$36 ^\circ \text{C}$$ . If this is $$78^\circ$$ warmer than the outside temperature, what is the outside temperature?

• -50 °C
• -30 °C
• -10 °C
• -42 °C

Multiple Choice

What is the difference between the summer and winter outside temperatures?

• There is no significant difference between summer and winter temperatures.
• Summer temperatures are always higher than winter temperatures by 20°F.
• The difference between summer and winter temperatures is usually 10°C.
• The difference between summer and winter outside temperatures is typically around 30°C.

Multiple Choice

What is the difference of -5 and 6?

• -11
• -5
• -1
• 1

Multiple Choice

Find the difference of 35 and -8.

• 27
• 43
• -43
• 43

Multiple Choice

What is the difference of $$\frac{2}{5}$$ and $$\frac{3}{5}$$ ?

• rac{1}{5}
• 0
• -rac{2}{5}
• -\frac{1}{5}

Multiple Choice

What is the difference of $$-4\frac{3}{8}$$ and $$-1\frac{1}{4}$$ ?

• -3 1/8
• -3 3/8
• -5 1/4
• -2 3/8

Multiple Choice

What is the difference in elevation between Lake Assal, Djibouti, at -155 meters, and Elidar, Ethiopia, at 418 meters?

• 300 meters
• 573 meters
• 573 feet
• 200 meters