1.
Evaluate (4 + 5) ÷ 3 × 2 + (2
2
- 1).
A.
10
B.
18
C.
9
D.
Hint
2.
Evaluate
a
+
b
- 3 if
a
= 10 and
b
= 7.
A.
0
B.
67
C.
7
D.
14
Hint
3.
Evaluate
if
a
= 10 and
b
= 5.
A.
2,000
B.
400
C.
200
D.
4,000
Hint
4.
Evaluate (3 + 10 ÷ 2 – 6 + 18) ÷ 2
2
.
A.
6.5
B.
4.625
C.
10
D.
5
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.
15 - 7 = 8
C.
15 – 4 = 11
D.
12 – 5 = 7
Hint