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Class VI
Class VII
Class VIII
Class IX
Class X
CBSE Grade VIII - Exponents and Powers
Question
1
1.
Simplify the expression
5
-2
✕
5
-4
5
-6
5
-7
5
-5
8
-6
3
-6
Question
2
2.
Write the given number in usual form
1.292194
✕
10
11
1292194000
12921940000
129219400000
1292194000000
12921940000000
Question
3
3.
Represent the given small number in scientific form
-0.02306368
-2.306368
✕
10
-2
-2.306368
✕
10
-1
-2.306368
✕
10
-3
-2.306368
✕
10
-4
-2.306368
Question
4
4.
Simplify the expression
(-6)
2
✕
(-6)
2
(-6)
5
(-8)
4
(-6)
4
(-4)
4
(-6)
3
Question
5
5.
(
-5
✕
-9
)
-2
=
(-5)
-2
✕
(-12)
-2
(-5)
-2
✕
(-9)
-1
(-5)
-2
✕
(-9)
-3
(-5)
-2
✕
(-9)
-2
(-5)
-2
✕
(-6)
-2
Question
6
6.
Simplify the expression
-4
(
8
3
)
✕
-4
(
8
3
)
-8
(
10
3
)
-9
(
8
3
)
-8
(
8
3
)
-7
(
8
3
)
2
-8
Question
7
7.
The value of
3
(
-1
3
)
+
2
(
-5
3
)
74
27
8
3
76
27
2
(
74
27
)
74
25
Question
8
8.
(-4)
-7
=
7
(
-1
4
)
8
(
-1
4
)
6
(
-1
4
)
7
(
-3
4
)
7
(
1
4
)
Question
9
9.
(-9)
3
(-9)
6
=
(-9)
-2
(-11)
-3
(-9)
-3
(-9)
-4
(-7)
-3
Question
10
10.
Expand the following base power
2
3
16
-1
8
64
4
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