1.
Find the solution of 72 +
z
= 84 if the value of
z
can be selected from the set {4, 8, 12, 16}.
A.
12
B.
4
C.
8
D.
16
Hint
2.
Which value for
b
makes the inequality
true?
A.
6
B.
7
C.
none of these
D.
5
Hint
3.
Solve
n
– 2 = 5.
A.
–7
B.
3
C.
7
D.
–3
Hint
4.
Solve 3
q
+ 6 = 15.
A.
2
B.
9
C.
3
D.
7
Hint
5.
The number sentence below is false. Make the sentence true by changing one symbol or number. Find the correct number sentence.
6 + 14 ÷ 2 = (6 + 12) ? 2 + 3
A.
6 + 14 ÷ 2 = (6 + 14) ÷ 2 + 3
B.
6 + 14 ÷ 4 = (6 + 12) ÷ 2 + 3
C.
6 + 14 ÷ 2 < (6 + 12) ÷ 2 + 3
D.
6 + 14 ÷ 2 = (6 + 12) ÷ 4 + 3
Hint