Integers (Addition & Subtraction)

-15 - (+12) = ?

• -27

• 27

• +25

12 + (-15) = ?

• -3

• 3

• 17

-22 + (-9)

• -11
• -31
• 11
• 31

 $-11+\left(-79\right)-24+\left(-36\right)$  

• 120

• -120

• 150

• -150

During the football game, Justin caught three passes. One was for a touchdown and he gained 52 yards. The other was for a first down and he gained 17 yards. The other pass did not work so well and ended up with a loss of 10 yards. What was the total yardage gained by Justin on the pass plays?

• 59

• 69

• 62

• -39

Answer explanation

To find the total yardage, add the yards gained: 52 (touchdown) + 17 (first down) - 10 (loss) = 59. Therefore, the total yardage gained by Justin on the pass plays is 59.

In Round 1 of a game, a student loses 5 points, loses 3 points, gains 17 points, and loses 7 points. What is the student’s score at the end of Round 1? 

• 12 points

• 2 points

• 32 points

• 25 points

Answer explanation

To find the score, start with 0 points: -5 - 3 + 17 - 7 = 2 points. Thus, the student's score at the end of Round 1 is 2 points.

A football team scored 7 points in the first quarter and 10 points in the second quarter. What is their total score?

• 15

• 12

• 20

• 17

Answer explanation

The team scored 7 points in the first quarter and 10 points in the second quarter. Adding these together: 7 + 10 = 17. Therefore, the total score is 17.

John has 5 apples and his friend gives him 3 more apples. How many apples does John have now?

• 8

• 12

• 10

• 7

Answer explanation

John starts with 5 apples and receives 3 more. To find the total, add 5 + 3, which equals 8. Therefore, John has 8 apples now.

A submarine is at a depth of -200 meters and it descends further by 150 meters. What is the new depth of the submarine?

• -150

• -250

• -350

• -50

Answer explanation

The submarine starts at -200 meters and descends an additional 150 meters. To find the new depth, add -200 and -150: -200 + (-150) = -350. Thus, the new depth is -350 meters.

A car travels 50 kilometers north and then turns around and travels 30 kilometers south. How far is the car from its starting point?

• 20

• 10

• 80

• 60

Answer explanation

The car travels 50 km north and then 30 km south. The net distance north is 50 - 30 = 20 km. Therefore, the car is 20 kilometers from its starting point.