Adding Integers
−1 + 8 =
7
16 − 19 = ____
-3
−5 × (−3) = ____
15
−20 ÷ (−4) = ____
5
1.45 + 38.002
39.452
7 + (−8) = ____
-1
−10 − (−2) = ____
-8
4 × (−10) =
-40
−18 ÷ 9 = __
-2
David reads with his children every 2 days. His mother reads with David’s children every 5 days. They both read with David’s children today. It will be ____ days until they both read with the children on the same day again.
10
During a two-day golf tournament, Eliseo scored −6 on the first day and −2 on the second day. What was his overall score for the tournament?
-8
30 − 70 =
-40
Gary’s stock dropped 3 points in value every day for 4 days. Find the integer that represents the change in value of his stock during that time.
-12 Points
−49 ÷ (−7) =
7
Jamal and David work at the animal shelter. Jamal can clean 120 kennels during his 8 hour shift. David can clean 51 kennels during a 3 hour shift. If they both worked a 5 hour shift, how many total kennels could they clean?
160 Kennels
Nika uses ice cubes to cool her lemonade. Each ice cube lowers the temperature of the liquid by 3º F. She adds four ice cubes to her lemonade. What integer represents the change in temperature of the drink when she adds the four cubes?
-12º F
The high temperature on a day was 28º F. The low temperature for the same day was −4º F. What was the difference between the high and the low temperature?
32
Aaron had a pitcher of iced tea. Each time he poured a glass it would go down by 8 ounces. If he poured 6 glasses of iced tea, what integer represents the change in the level of liquid in the pitcher?
-48 ounces
A scuba diver dove 48 feet in 4 minutes. What integer represents his change in depth for each minute?
-12 feet
Sixty teenagers are at a skating rink. Eighteen of the teens are in-line skating and 24 are roller skating. Nine teenagers are playing arcade games and the rest of the teens are in the eating area. What percent of teenagers are eating or in-line skating?
45
Brad played a game with his sister. In the first round he scored 18 points. In the second round he scored −7 points. What was his overall score after two rounds?
11
−7 − (−5) − (−2) =
0
4 × (−7 + 11) =
16
On a hike, Oscar’s elevation change after 12 minutes was −84 feet. Assuming his elevation was changing at a constant rate, what integer represents his elevation change per minute?
-7 feet
Ciara has been absent and is trying to make up the homework she missed. It takes Ciara 5/12 hour to complete a math assignment. She has set aside 3 hours this week to complete her math assignments. How many can she complete? Write your answer as a mixed number in simplest form.
7 1/5