1.
Which of the numbers is the solution of 3
d
= 12?
A.
2
B.
4
C.
3
D.
6
Hint
2.
Solve 16 =
k
+ 10 using mental math.
A.
9
B.
10
C.
8
D.
6
Hint
3.
Determine which equation is true by replacing the variable with 2.
A.
6
x
= 8
B.
6
x
+ 4 = 16
C.
6
x
+ 2 = 10
D.
2
x
+ 2 = 8
Hint
4.
Which of the numbers is the solution of
x
÷ 2 – 4 = 10?
A.
30
B.
32
C.
26
D.
28
Hint
5.
Solve 24 = 2
m
mentally.
A.
12
B.
4
C.
22
D.
48
Hint