Adding and Subtracting Integers

Use the number line to find the sum.
-4 + (-5) =

• -9

• 9

• -1

• 1

Use the number line to find the sum.
3 + (-12) =

• -9

• 9

• -15

• 15

What needs to be added to get to the circled answer

• 10

• -10

• -17

• 17

-9 + (-5)

• -14

• 14

• -4

An integer problem is modeled on a number line.. Which equation best represents the model? ​ (a)  

• 7 + (-10)=-3

• 7 + (-3) =4

• -3 + 7=10

• 10 + (-3) = 7

Coach Bob’s football team lost 8 yards, gained 5 yards, and lost 2 yards on their first 3 plays from the line of scrimmage.
The team’s current position is ​​ (a)   yards relative to the original line of scrimmage.
The additive inverse,​ (b)   represents the number of yards the team needs to gain in order to return to the original line of scrimmage.

• -5

• 5

• 15

• -15

The equation ​ ​ (a)   is correct.

• (-3)+5=2

• ​(-3)+5=-2

• ​-3+(-5)=-2

• ​3+(-5)=2

Match

• 12

• 24 - (-5)

• 29

• -7 - (-10)

• -216

• -3 + 14

• 3

• 72(-3)

• 11

• 18 + (-6)

Mathematical Equivalence

ON

Coach Bob’s football team lost 8 yards, gained 5 yards, and lost 2 yards on their first 3 plays from the line of scrimmage.
The team’s current position is ​​ (a)   yards relative to the original line of scrimmage.
The additive inverse,​ (b)   represents the number of yards the team needs to gain in order to return to the original line of scrimmage.

• -5

• 5

• 15

• -15