1.
Solve the equation.
15 − ___ = 9
A.
3
B.
6
C.
9
D.
24
Hint
2.
Solve the equation.
6 + ___ = 13
A.
20
B.
7
C.
6
D.
8
Hint
3.
Solve the equation.
15 − ___ = 7
A.
22
B.
7
C.
8
D.
6
Hint
4.
Solve the equation.
___ − 15 = 15
A.
45
B.
0
C.
30
D.
15
Hint
5.
If ■ − 4 = 11, what is the value of ■?
A.
4
B.
19
C.
15
D.
11
Hint