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