Adding and Subtracting with Integers

-9 + (-5)

• -14

• 14

• -4

• 4

Which addition equation matches the problem modeled below? (Yellow is positive and Red is negative)

• -2 + -4 = -6

• 2 + -4 = -2

• 4 + 2 = 6

-7 - 2

• -9

• 9

• 5

• -5

-2 + 4 

• -2

• 2

• 0

• -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

18 + (-13)

Mathematical Equivalence

ON

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

Mathematical Equivalence

ON

The equation ​ ​ (a)   is correct.

• (-3)+5=2

• ​(-3)+5=-2

• ​-3+(-5)=-2

• ​3+(-5)=2

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