EduSahara™ Worksheet
Name : Chapter Based Worksheet
Chapter : Exponents
Grade : ICSE Grade VIII
License : Non Commercial Use
Question
1
1.
(
1
2
b
c
d
)
✕
(
−
8
c
4
d
8
)
✕
(
−
9
2
d
9
)
=
(i)
−
162
c
13
d
25
(ii)
−
4
b
c
5
d
9
(iii)
18
b
c
5
d
18
(iv)
18
b
c
14
d
17
(v)
81
8
d
18
b
c
10
Question
2
2.
Simplify
(
v
(
b
+
c
)
)
2
(
v
(
c
+
d
)
)
2
(
v
(
d
+
b
)
)
2
(
v
b
.
v
c
.
v
d
)
(i)
v
(
2
b
+
2
c
+
2
d
)
(ii)
v
(
3
b
+
3
c
+
3
d
)
(iii)
v
b
.
v
c
.
v
d
(iv)
v
(
b
+
c
+
d
)
(v)
v
(
4
b
+
4
c
+
4
d
)
Question
3
3.
Find the value of
(
-4
3
)
8
(i)
1
14
(ii)
(
-1
16
)
(iii)
1
18
(iv)
3
16
(v)
1
16
Question
4
4.
Simplify the expression
3
(
9
5
)
✕
6
(
9
5
)
✕
3
(
9
5
)
(i)
11
(
9
5
)
(ii)
13
(
9
5
)
(iii)
12
(
9
5
)
(iv)
12
(
11
5
)
(v)
12
(
7
5
)
Question
5
5.
(
5
3
)
3
(
3
2
)
3
=
(i)
1
(ii)
(
1
6
)
3
(iii)
(
1
8
)
3
(iv)
(
1
6
)
6
(v)
(
1
4
)
3
Question
6
6.
3
-5
=
(i)
6
(
1
3
)
(ii)
5
(
1
3
)
(iii)
1
(iv)
5
(
-1
3
)
(v)
4
(
1
3
)
Question
7
7.
The
exponent
in the term
(
9
2
)
7
is
(i)
-7
(ii)
7
2
(iii)
9
2
(iv)
7
(v)
(
-9
2
)
Question
8
8.
[
(
-5
3
)
]
-5/4
(-6)
=
(i)
(
29
14
)
(-6)
(ii)
(
25
12
)
(-6)
(iii)
(
21
10
)
(-6)
(iv)
(
25
12
)
(-9)
(v)
(
25
12
)
(-3)
Question
9
9.
Simplify
(
s
(
j
+
k
)
)
(
j
−
k
)
(
s
(
k
+
l
)
)
(
k
−
l
)
(
s
(
l
+
j
)
)
(
l
−
j
)
(i)
s
(
j
+
k
+
l
)
(ii)
-1
(iii)
0
(iv)
s
(v)
1
Question
10
10.
Simplify
√
49
−
√
4
√
144
+
√
100
=
(i)
7
22
(ii)
3
22
(iii)
5
24
(iv)
5
22
(v)
1
4
Question
11
11.
Simplify the expression
(
-3/2
)
(
7
2
)
✕
-6
(
7
2
)
(i)
(
-15/2
)
(
7
2
)
(ii)
-8
(
7
2
)
(iii)
(
-29/4
)
(
7
2
)
(iv)
(
-15/2
)
(
5
2
)
(v)
(
-15/2
)
(
9
2
)
Question
12
12.
(
f
3
g
3
)
h
=
(i)
f
3
h
.
g
3
h
(ii)
f
3
h
g
3
h
(iii)
g
3
h
f
3
h
(iv)
f
3
h
.
−
g
3
h
Question
13
13.
7
j
6
.
5
j
6
=
(i)
12
j
36
(ii)
35
j
12
(iii)
12
j
12
(iv)
12
j
35
(v)
35
j
36
Question
14
14.
Simplify the expression
-8
(
7
4
)
✕
-8
(
7
4
)
✕
-8
(
7
4
)
(i)
-23
(
7
4
)
(ii)
-24
(
5
4
)
(iii)
-24
(
7
4
)
(iv)
-25
(
7
4
)
(v)
-24
(
9
4
)
Question
15
15.
(
g
14
g
3
)
6
=
(i)
6
g
17
(ii)
6
g
11
(iii)
g
66
(iv)
g
252
(v)
g
102
Question
16
16.
3
√
0.1250
=
(i)
0.5
(ii)
0.6
(iii)
0.4
(iv)
0.05
(v)
0.7
Question
17
17.
The
power
in the term
7
2
is
(i)
2
1
(ii)
-7
(iii)
-2
(iv)
7
(v)
-1
Question
18
18.
Find the square root of
h
(
2
n
+
2
)
.
i
2
n
.
j
(
2
n
−
2
)
(i)
h
(
n
+
1
)
.
i
2
n
.
j
(
n
−
1
)
(ii)
h
(
n
−
1
)
.
i
n
.
j
(
n
+
1
)
(iii)
2
h
(
n
+
1
)
.
2
i
n
.
2
j
(
n
−
1
)
(iv)
h
(
n
+
1
)
.
i
n
.
j
(
n
−
1
)
Question
19
19.
(
5
✕
-3
✕
-6
)
9
=
(i)
5
9
✕
(-5)
9
✕
(-8)
9
(ii)
5
9
✕
(-1)
9
✕
(-3)
9
(iii)
5
9
✕
(-3)
10
✕
(-6)
10
(iv)
5
9
✕
(-3)
8
✕
(-6)
8
(v)
5
9
✕
(-3)
9
✕
(-6)
9
Question
20
20.
(
9
5
✕
(
-8
3
)
✕
9
2
)
-2
=
(i)
-2
(
9
5
)
✕
(-2)
-2
✕
-2
(
11
2
)
(ii)
-2
(
9
5
)
✕
-3
(
-8
3
)
✕
-3
(
9
2
)
(iii)
-2
(
9
5
)
✕
-1
(
-8
3
)
✕
-1
(
9
2
)
(iv)
-2
(
9
5
)
✕
-2
(
-10
3
)
✕
-2
(
7
2
)
(v)
-2
(
9
5
)
✕
-2
(
-8
3
)
✕
-2
(
9
2
)
Question
21
21.
Simplify
(
s
i
s
j
)
k
(
s
j
s
k
)
i
(
s
k
s
i
)
j
(i)
s
(ii)
s
(
i
+
j
+
k
)
(iii)
1
(iv)
0
(v)
-1
Question
22
22.
(
e
14
e
)
5
=
(i)
e
(
14
e
+
5
)
(ii)
5
e
70
e
(iii)
e
70
e
(iv)
e
14
e
Question
23
23.
(
x
8
y
5
z
6
)
5
=
(i)
(
x
13
y
10
z
11
)
(ii)
(
x
13
y
10
z
30
)
(iii)
(
x
40
y
25
z
30
)
(iv)
(
x
40
y
25
z
11
)
(v)
(
5
x
8
y
5
5
z
6
)
Question
24
24.
Find the square root of
h
14
16
i
12
(i)
h
7
4
i
6
(ii)
h
14
4
i
12
(iii)
h
28
4
i
24
(iv)
h
7
4
i
12
(v)
h
14
4
i
6
Question
25
25.
The
exponent
in the term
(
5/2
)
(
3
2
)
is
(i)
(
-5
2
)
(ii)
3
2
(iii)
5
2
(iv)
(
-3
2
)
Assignment Key
1) (iii)
2) (ii)
3) (v)
4) (iii)
5) (ii)
6) (ii)
7) (iii)
8) (ii)
9) (v)
10) (iv)
11) (i)
12) (ii)
13) (ii)
14) (iii)
15) (iii)
16) (i)
17) (i)
18) (iv)
19) (v)
20) (v)
21) (iii)
22) (iii)
23) (iii)
24) (i)
25) (iii)
