Adding and Subtracting Negative Numbers with Temperature and Elevation

Subtracting a negative is the same thing as...

• Becoming more negative

• Adding a positive

• Becoming 0

• Impossibility

If you ADD a NEGATIVE...

• Your total becomes more negative

• Your total becomes more positive

• Your total doesn't change

• Your total is 0

When ADDing two integers with the SAME SIGN...

• Add and keep the same sign.

• Add and change the sign.

• Subtract and keep the same sign.

• Subtract and change the sign.

In Buffalo, New York, the temperature was -14°F in the morning. If the temperature dropped 7°F, what is the temperature now?

• 7°F

• 21°F

• -21°F

• -7°F

It was -4 degrees in Detroit on December 18, 2019. On December 19, 2019, in Detroit, it was 19 degrees. What was the change in temperature?

• 23

• -15

• 12

• -23

A diver is on a cliff that is 235 feet above sea level. A dolphin is 38 feet under the surface of the sea. What is the difference in their elevation?

• 197 feet

• 273 feet

• -197 feet

• -273 feet

The temperature in the morning was -3°F. The temperature dropped 11 degrees by sunset. What was the temperature at sunset?

• -14

• -8

• 8

• 14

The temperature increased 4°F one hour later. What is the current temperature if the temperature was (-8°F) one hour ago?

• 12°F

• -12°F

• 4°F

• -4°

The temperature at 10 am was -7 degrees F. By noon, the temperature had dropped by 12 degrees F. By 2 pm, it had dropped another 5 degrees F. What was the temperature at 2 pm?

Elise is on a hiking trip in Colorado. The highest elevation she reaches is 240 meters and the lowest elevation is about 10 meters below sea level. Michael wants to know the change in elevation to determine how many meters Elise hiked. Write an equation that he can use to find the change including the result.