Add Integers
Add:
5 + –4 =
1
Subtract:
4 − –5 =
9
In the morning, the temperature was –10°C. By the afternoon, it had risen to –2°C. What was the change in temperature from the morning to the afternoon?
8
Multiply:
–6 × –8 =
48
Add:
–5 + –2 =
-7
Subtract:
–3 − –5 =
2
The city of Amsterdam is 2 meters below sea level. Lammefjord, a city in Denmark, is 7 meters below sea level. How much higher is Amsterdam than Lammefjord?
5
Multiply:
3 × –4 =
-12
Add:
–2 + –3 =
-5
Subtract:
–3 − –1 =
-2
Overnight, the temperature in Chicago was just –7°F. But by the afternoon, the temperature had risen 9°F.
What was the temperature in Chicago that afternoon?
2^@ F
Multiply:
5 × –11 =
-55
Add:
–94 + 52 =
-42
Subtract:
75 − –89 =
164
The boiling point of a liquid is the temperature at which the liquid starts to boil. The boiling point of water is 212°F. Propane gas is used for cooking in gas grills. Liquid propane has a boiling point of –44°F.
How much warmer is the boiling point of water than the boiling point of liquid propane?
256^@F
Add:
–575 + 192 =
-383
Subtract:
–768 − 503 =
-1271
In the video game Cave Chasers, players gain and lose points as they explore caves, find treasures, and face challenges. Becky is still learning how to play the game. She had –130 points. Then, she got –25 points for getting lost in a cave.
How many total points does Becky have now?
-155 points