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Class VI
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ICSE Grade VIII - Exponents
Question
1
1.
(
x
)
(
r
−
s
)
.
(
x
)
(
s
−
t
)
.
(
x
)
(
t
−
r
)
=
2
(-1)
1
0
4
Question
2
2.
Simplify
2
2
✕
(-4)
2
(-4)
-2
✕
(-2)
2
(-1)
8
5
8
2
7
2
9
2
8
Question
3
3.
(
1
3
b
c
d
)
✕
(
9
c
2
d
4
)
✕
(
−
8
9
d
10
)
=
3
b
c
3
d
5
−
8
3
b
c
3
d
15
64
9
c
12
d
18
64
243
d
15
b
c
11
−
8
3
b
c
13
d
9
Question
4
4.
Simplify the expression
(-9)
-9
✕
(-2)
-9
18
-10
18
-8
16
-9
21
-9
18
-9
Question
5
5.
Simplify the expression
7
(
7
5
)
✕
7
(
7
5
)
✕
7
(
7
5
)
21
(
9
5
)
21
(
7
5
)
1
22
(
7
5
)
20
(
7
5
)
Question
6
6.
If
343000
=
7
b
✕
2
c
✕
5
d
, find
b
,
c
,
d
(3,3,5)
(3,3,3)
(3,5,3)
(5,3,1)
(5,3,3)
Question
7
7.
0
0
=
0
-1
undefined
1
∞
Question
8
8.
(
2
n
2
.
4
o
(-3)
)
-1
=
−
2
o
3
−
4
n
(-2)
n
3
8
o
(-2)
o
3
.
8
n
(-2)
2
o
3
4
n
(-2)
o
3
8
n
2
Question
9
9.
2
(
-4
7
)
=
-4
7
2
(-4)
3
7
2
(-4)
2
4
2
(-4)
2
9
2
(-4)
2
7
2
Question
10
10.
Simplify the expression
-7
(
8
3
)
✕
-4
(
8
3
)
✕
-6
(
8
3
)
-16
(
8
3
)
2
-17
-17
(
10
3
)
-18
(
8
3
)
-17
(
8
3
)
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