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