1.
Evaluate (4 + 5) ÷ 3 × 2 + (2
2
- 1).
A.
18
B.
10
C.
D.
9
Hint
2.
Evaluate
a
+
b
- 3 if
a
= 10 and
b
= 7.
A.
7
B.
67
C.
0
D.
14
Hint
3.
Evaluate 2
c
- 4
k
if
c
= 16 and
k
= 5.
A.
18
B.
12
C.
16
D.
52
Hint
4.
Evaluate 4
a
+ 2
b
– 3
c
if
a
= 2,
b
= 3, and
c
= 4.
A.
11
B.
6
C.
2
D.
31
Hint
5.
Which is a counterexample for the following statement?
The difference of two odd numbers is an odd number
.
A.
7 + 9 = 16
B.
12 – 5 = 7
C.
15 - 7 = 8
D.
15 – 4 = 11
Hint