EduSahara™ Worksheet
Name : Chapter Based Worksheet
Chapter : Exponents and Powers
Grade : CBSE Grade VIII
License : Non Commercial Use
Question
1
1.
Simplify the expression
7
8
✕
5
8
✕
3
8
(i)
105
8
(ii)
107
8
(iii)
105
7
(iv)
105
9
(v)
103
8
Question
2
2.
[
-4
]
-2
(
8
7
)
=
(i)
8
(
10
7
)
(ii)
7
(
8
7
)
(iii)
9
(
8
7
)
(iv)
8
(
8
7
)
(v)
8
(
6
7
)
Question
3
3.
Simplify
(-4)
-2
✕
(-5)
-2
✕
(-3)
2
5
-2
✕
4
-2
✕
(-4)
2
(i)
2
(
5
4
)
(ii)
3
4
(iii)
3
(
3
4
)
(iv)
2
(
3
4
)
(v)
2
(
1
4
)
Question
4
4.
[
(
5/2
)
]
3
(
-2
7
)
=
(i)
8
(
-2
7
)
(ii)
(
15/2
)
(
-2
7
)
(iii)
(
29/4
)
(
-2
7
)
(iv)
(
17/2
)
(
-2
7
)
(v)
(
15/2
)
(
-4
7
)
Question
5
5.
Expand the following base power
(-4)
3
(i)
-216
(ii)
-8
(iii)
256
(iv)
-64
(v)
16
Question
6
6.
Simplify the expression
6
(
5
2
)
✕
2
(
5
2
)
(i)
7
(
5
2
)
(ii)
8
(
5
2
)
(iii)
8
(
7
2
)
(iv)
8
(
3
2
)
(v)
9
(
5
2
)
Question
7
7.
(
-7
✕
6
)
6
=
(i)
(-7)
6
✕
6
6
(ii)
(-7)
6
✕
6
5
(iii)
(-7)
6
✕
6
7
(iv)
(-7)
6
✕
3
6
(v)
(-7)
6
✕
8
6
Question
8
8.
Expand the following base power
5
(
1
5
)
(i)
(
-1
3125
)
(ii)
243
3125
(iii)
1
15625
(iv)
1
3125
(v)
1
625
Question
9
9.
The value of
2
(
3
2
)
+
2
(
2
3
)
(i)
97
34
(ii)
95
36
(iii)
2
(
97
36
)
(iv)
97
36
(v)
11
4
Question
10
10.
The value of
(-4)
-2
+
(-5)
-2
(i)
41
400
(ii)
43
400
(iii)
39
400
(iv)
41
398
(v)
2
(
41
400
)
Question
11
11.
Expand the following base power
2
-2
(i)
1
4
(ii)
1
16
(iii)
1
32
(iv)
1
8
(v)
1
2
Question
12
12.
Simplify the expression
(-9)
-3
✕
(-9)
-3
(i)
(-7)
-6
(ii)
(-9)
-7
(iii)
(-11)
-6
(iv)
(-9)
-6
(v)
(-9)
-5
Question
13
13.
Represent the given large number in scientific form
-8857043000
(i)
-8.857043
✕
10
11
(ii)
-8.857043
✕
10
8
(iii)
-8.857043
✕
10
7
(iv)
-8.857043
✕
10
10
(v)
-8.857043
✕
10
9
Question
14
14.
Simplify
(-3)
-2
(-4)
2
(i)
12
-2
(ii)
12
-3
(iii)
12
-1
(iv)
9
-2
(v)
14
-2
Question
15
15.
Simplify the expression
-9
(
-9
8
)
✕
-7
(
-9
8
)
✕
-5
(
-9
8
)
(i)
-21
(
-9
8
)
(ii)
-22
(
-9
8
)
(iii)
-20
(
-9
8
)
(iv)
-21
(
-11
8
)
(v)
-21
(
-7
8
)
Question
16
16.
[
(
5
6
)
3
✕
(
5
6
)
3
]
÷
5
36
(i)
2
(ii)
4
(iii)
5
(iv)
1
(v)
0
Question
17
17.
Simplify
2
2
✕
3
3
✕
(-3)
3
(-2)
2
✕
(-4)
3
✕
3
3
✕
3
3
(i)
2
-6
(ii)
2
-5
(iii)
2
-7
(iv)
5
-6
(v)
2
-8
Question
18
18.
Simplify the expression
(-7)
-6
✕
(-7)
-7
✕
(-7)
-3
(i)
(-7)
-16
(ii)
(-7)
-17
(iii)
(-7)
-15
(iv)
(-9)
-16
(v)
(-5)
-16
Question
19
19.
The value of
3
(
5
3
)
✕
2
(
5
3
)
(i)
3125
243
(ii)
3127
243
(iii)
3125
241
(iv)
2
(
3125
243
)
(v)
347
27
Question
20
20.
The value of
5
3
✕
5
2
(i)
3125
(ii)
3122
(iii)
3128
(iv)
3125
2
(v)
3124
Question
21
21.
(
9
3
✕
4
6
)
5
=
(i)
9
30
✕
4
15
(ii)
9
3
✕
4
30
(iii)
9
15
✕
4
30
(iv)
9
3
✕
4
6
(v)
9
15
✕
4
6
Question
22
22.
Simplify the expression
7
(
-2
7
)
✕
3
(
-2
7
)
✕
3
(
-2
7
)
(i)
14
(
-2
7
)
(ii)
12
(
-2
7
)
(iii)
16
(
-2
7
)
(iv)
13
(
-4
7
)
(v)
13
(
-2
7
)
Question
23
23.
The value of
-3
(
-4
3
)
✕
-3
(
1
3
)
(i)
2
(
-729
64
)
(ii)
(
-727
64
)
(iii)
(
-729
62
)
(iv)
(
-731
64
)
(v)
(
-729
64
)
Question
24
24.
(
7
2
)
3
✕
(
10
5
)
4
✕
(
12
(-3)
)
4
(
7
(-5)
)
-3
✕
(
10
6
)
4
✕
(
12
(-4)
)
-6
=
(i)
7
(-9)
✕
10
(-4)
✕
12
(-35)
(ii)
7
(-9)
✕
10
(-4)
✕
12
(-36)
(iii)
7
(-8)
✕
10
(-4)
✕
12
(-36)
(iv)
7
(-9)
✕
10
(-3)
✕
12
(-36)
Question
25
25.
Represent the given large number in scientific form
2755686000
(i)
2.755686
✕
10
8
(ii)
2.755686
✕
10
11
(iii)
2.755686
✕
10
7
(iv)
2.755686
✕
10
9
(v)
2.755686
✕
10
10
Assignment Key
1) (i)
2) (iv)
3) (iv)
4) (ii)
5) (iv)
6) (ii)
7) (i)
8) (iv)
9) (iv)
10) (i)
11) (i)
12) (iv)
13) (v)
14) (i)
15) (i)
16) (iv)
17) (i)
18) (i)
19) (i)
20) (i)
21) (iii)
22) (v)
23) (v)
24) (ii)
25) (iv)
