Test:
Indices II - Challenging
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Question 1:
Calculate:
81
×
(
-
3
)
-
5
A
1
3
B
1
9
C
-
1
3
D
-
1
9
Question 2:
Calculate:
32
0
+
2
-
1
A
30
B
34
C
1
1
2
D
-
1
1
2
Question 3:
Calculate:
724
2
-
76
2
324
A
1600
B
-
160
C
160
D
-
1600
Question 4:
Simplify expression:
(
-
2
x
4
y
)
3
(
-
0.5
x
y
5
)
2
A
x
14
y
13
B
-
x
14
y
13
C
2
x
14
y
13
D
-
2
x
14
y
13
Question 5:
Find value of p:
p
5
=
2
25
A
20
B
25
C
32
D
2
Question 6:
Calculate:
100
-
2
:
0.1
4
+
2
5
A
1
B
100
C
1
2
5
D
2
5
Question 7:
Calculate:
0.5
2
:
(
1
4
)
-
2
×
(
1
2
)
-
6
A
1
B
10
C
-1
-
1
D
-
10
Question 8:
Write in a standard form:
8902.5
A
8.9025
×
10
3
B
8.9025
C
89.025
×
10
3
D
89025
Question 9:
Calculate:
1.8
×
10
4
+
5
×
10
3
A
6.8
×
10
7
B
2.3
×
10
7
C
23000
D
2200
Question 10:
Solve the equation:
3
x
-
1
+
x
-
1
=
1
A
4
B
0
C
1
D
3
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