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Class VI
Class VII
Class VIII
Class IX
Class X
ICSE Grade VIII - Exponents
Question
1
1.
Simplify the expression
(
5/3
)
(
9
8
)
✕
(
5/3
)
(
9
5
)
(
5/3
)
(
81
40
)
(
5/3
)
(
83
40
)
5
(
81
40
)
(
5/3
)
(
79
40
)
2
1
40
Question
2
2.
Simplify
2
-1
+
7
0
+
5
1
+
9
-1
131
20
13
2
119
18
107
16
121
18
Question
3
3.
-1
10
=
-1
undefined
∞
0
1
Question
4
4.
If
(
9
2
)
210
=
(
9
4
)
j
, find
j
106
107
104
105
102
Question
5
5.
Find the reciprocal of
9
(
-4
7
)
8
(
-7
4
)
9
(
-9
4
)
9
(
-7
4
)
10
(
-7
4
)
9
(
-5
4
)
Question
6
6.
Simplify
(
3
j
.
16
(
j
−
2
)
.
25
(
j
−
1
)
9
(
j
−
2
)
.
4
(
j
−
1
)
.
5
(
j
−
4
)
)
3
(
j
+
2
)
.
4
(
−
j
)
.
5
(
−
j
+
7
)
3
(
−
j
+
4
)
.
4
(
−
j
)
.
5
(
−
j
+
7
)
3
(
−
j
+
4
)
.
4
(
j
−
3
)
.
5
(
j
+
2
)
3
2
.
4
(
−
1
)
.
5
3
Question
7
7.
(
(
h
2
)
3
)
-2
=
h
h
(-12)
h
8
h
3
h
4
Question
8
8.
Expand the following base power
(-2)
-2
1
4
(
-1
8
)
0
1
25
(
-1
2
)
Question
9
9.
If
4
(
3
t
+
1
)
÷
256
=
4
3
, find
t
3
0
1
2
4
Question
10
10.
−
9
f
(-2)
.
−
6
f
8
.
−
5
f
9
=
15
f
(-270)
−
270
f
15
−
20
f
15
−
20
f
(-144)
−
270
f
(-144)
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