1.
Which of the numbers is the solution of 3
d
= 12?
A.
2
B.
4
C.
6
D.
3
Hint
2.
Identify the solution of 84 ÷
r
= 12.
A.
6
B.
7
C.
21
D.
72
Hint
3.
For which equation is 11 the solution?
A.
11 =
h
+ 7
B.
29 –
h
= 18
C.
15 –
h
= 26
D.
h
– 5 = 11
Hint
4.
Determine which equation is true by replacing the variable with 2.
A.
2
x
+ 2 = 8
B.
6
x
+ 2 = 10
C.
6
x
= 8
D.
6
x
+ 4 = 16
Hint
5.
Solve 3 = 9 –
n
using mental math.
A.
7
B.
3
C.
6
D.
9
Hint