Adding Integers
Add the integers
6+(-4)
2
Subtract the integers
7-10
-3
Multiply the integers
(-3)xx2
-6
Divide the integers
-15 ÷ 3
-5
In science class, Victor started an experiment using a solution with a temperature of –5°C. During the experiment, the change in the solution's temperature was –4°C. What was the final temperature of Victor's solution?
When I woke up this morning the temperature was 2 degrees below zero. The temperature rose 18 degrees. What temperature is it now?
16 degrees
Add the integers
-29+ 56
Subtract the integers
-5-(-7)
2
Multiply the integers
3 xx (-6)
-18
Divide the integers
-28 ÷ 7
-4
From sea level, a submarine descends 40 feet per minute. Where is the submarine in relation to sea level 5 minutes after it starts descending?
-200
Last weekend I went caving in the Blue Mountains. We rappelled down 15 meters into the cave. Then I saw a crystal and rappelled 4 meters down to get it. How far down was the crystal?
-19 metres
Add the integers
-63 + 20
-43
Subtract the integers
6-(-4)
10
Multiply the integers
(-7)xx(-7)
49
Divide the integers
-48 ÷( -6)
8
A dolphin was swimming 7 meters below the surface of the ocean. It located a squid and dove down 4 more meters to eat it. What is the location of the dolphin now relative to the surface?
-11
Douglas the boxer went to Doggy Daycare 4 times this week. There was a chnage of -$84 in the bank acount. Represent how much was spent per day.
- $21
Mr. O’Connor lives in North Dakota. When he leaves for work one wintry morning, the temperature is −4° C. By the time he comes home, the temperature has increased 25°. What is the temperature when he comes home?
21
. Paula was standing on top of a cliff 35 feet above sea level. She watched her friend Juan jump from the cliff to a depth of 12 feet into the water. How far apart are the two friends?
47
The price of one share of a stock fell 4 dollars each day for 8 days. How much value did one share of the stock lose after 8 days?
-32
Louisa’s savings change by -$9 each time she goes bowling. In all, it changed by -$99 during the summer. How many times did she go bowling in the summer?
11
A gopher was digging 8 inches below ground. To avoid a tree root, it dug 3 inches deeper. What is the position of the gopher now relative to the surface?
-11
Temperatures have been rising steadily at 3 degrees each day. What integer represents the change in degrees over a 7 day time period?
21 degrees
Mitchell owes his mom $18. He’s been helping around the house a lot, so his mom decided to give him $12.. What is Mitchell balance?
-6
Ricardo’s grandmother flew from Buenos Aires, Argentina to Minnesota to visit some friends. When Ricardo’s grandmother left Buenos Aires the temperature was 84°. When she arrived in Minnesota it was –7°. What was the temperature change for Ricardo’s grandmother?
91
A mountain climber climbed down a cliff 50 feet at a time. He did this 5 times in one day. What was the overall change in his elevation?
-250
An oven temperature dropped 135° in 15 minutes. If the temperature dropped at a constant rate, how many degrees per minute did the temperature drop?
9
A scientist is measuring the temperature change in a chemical compound. The temperature dropped 11 °F per hour from the original temperature. After 4 hours, the temperature was 90 °F. Find the compound's original temperature.
134
Charlie has been trying to lower his golf score. In the first round he shot 2 below par. In the second round he shot 3 below par. What integer represents his results in both rounds?
-5