1.
Determine which equation is true by replacing the variable with 4.
A.
5 +
x
= 5
B.
5 +
x
= 4
C.
5 +
x
= 9
D.
5 +
x
= 10
Hint
2.
Identify the solution of 84 ÷
r
= 12.
A.
7
B.
21
C.
72
D.
6
Hint
3.
Determine which equation is true by replacing the variable with 2.
A.
2
x
+ 2 = 8
B.
6
x
= 8
C.
6
x
+ 4 = 16
D.
6
x
+ 2 = 10
Hint
4.
Solve 24 = 2
m
mentally.
A.
4
B.
12
C.
48
D.
22
Hint
5.
For which equation is 5 the solution?
A.
x
+ 3 = 5
B.
5 +
x
= 5
C.
3 –
x
= 2
D.
x
– 3 = 2
Hint