1.
Which equation does the model represent?
A.
x
+ (-5) = 1
B.
x
+ 5 = 1
C.
x
+ 5 = -1
D.
x
+ (-5) = -1
Hint
2.
Solve the equation -8 =
a
+ (-3).
A.
-5
B.
-11
C.
5
D.
11
Hint
3.
Which equation does the model represent?
A.
x
+ (-2) = -3
B.
x
+ (-3) = -2
C.
x
+ 3 = 2
D.
x
+ 2 = 3
Hint
4.
Solve the equation
x
+ 8 = 4.
A.
x
= 4
B.
x
= -4
C.
x
= 12
D.
xv
= -12
Hint
5.
Carmen and her friend Marva have a total of 15 pets. If Marva has 12 pets, how many pets does Carmen have?
A.
31
B.
27
C.
3
D.
5
Hint