EduSahara™ Worksheet
Name : Chapter Based Worksheet
Chapter : Exponents
Grade : ICSE Grade VIII
License : Non Commercial Use
Question
1
1.
Find the reciprocal of
2
(
-4
8
)
(i)
2
(
-8
4
)
(ii)
3
(
-8
4
)
(iii)
2
(
-3
2
)
(iv)
(
-8
4
)
(v)
2
(
-5
2
)
Question
2
2.
The
base
in the term
(
9
7
)
3
is
(i)
3
(ii)
(
-9
7
)
(iii)
1
(iv)
9
7
(v)
-3
Question
3
3.
If
3
u
=
9
, find
3
(
2
u
+
3
)
(i)
2187
(ii)
2186
(iii)
2185
(iv)
2188
(v)
2190
Question
4
4.
Find the square root of
g
(
8
s
+
8
)
.
h
8
s
.
i
(
8
s
−
8
)
(i)
g
(
s
+
4
)
.
h
8
s
.
i
(
s
−
4
)
(ii)
g
(
4
s
+
4
)
.
h
4
s
.
i
(
4
s
−
4
)
(iii)
8
g
(
s
+
1
)
.
8
h
s
.
8
i
(
s
−
1
)
(iv)
g
(
4
s
−
4
)
.
h
4
s
.
i
(
4
s
+
4
)
Question
5
5.
Simplify
4
-2
✕
(-4)
-3
✕
4
-3
✕
2
-3
3
-2
✕
(-4)
-2
✕
5
-3
(i)
-1
✕
2
4
✕
3
2
✕
5
3
2
19
(ii)
(-1)
2
✕
2
4
✕
3
2
✕
5
3
2
19
(iii)
-1
✕
2
4
✕
3
2
✕
5
3
4
19
(iv)
-1
✕
2
3
✕
3
2
✕
5
3
2
19
(v)
-1
✕
2
4
✕
3
2
✕
5
3
2
16
Question
6
6.
Find the reciprocal of
6
5
(i)
5
(
1
2
)
(ii)
5
(
1
6
)
(iii)
6
(
1
6
)
(iv)
5
(
-1
6
)
(v)
4
(
1
6
)
Question
7
7.
-3
(
5
4
)
9
(
5
4
)
=
(i)
-12
(
7
4
)
(ii)
-13
(
5
4
)
(iii)
-12
(
5
4
)
(iv)
-12
(
3
4
)
(v)
-11
(
5
4
)
Question
8
8.
(
e
2
f
3
)
2
=
(i)
2
e
4
f
5
(ii)
e
4
f
6
(iii)
2
e
2
f
3
(iv)
2
e
4
f
6
(v)
e
4
f
5
Question
9
9.
If
125
✕
5
d
=
5
8
, find
d
(i)
6
(ii)
4
(iii)
3
(iv)
8
(v)
5
Question
10
10.
Simplify
3
2
✕
(-4)
2
✕
2
2
4
-2
✕
(-2)
-2
✕
4
-2
(i)
768
3
(ii)
770
2
(iii)
765
2
(iv)
768
(v)
768
2
Question
11
11.
Find the square root of
x
4
y
2
z
6
=
(i)
x
y
z
12
(ii)
(
x
4
y
2
z
6
)
2
(iii)
x
2
y
z
3
(iv)
1
x
4
y
2
z
6
(v)
x
y
z
48
Question
12
12.
[
(-9)
5
]
4
=
(i)
(-9)
21
(ii)
(-9)
20
(iii)
(-12)
20
(iv)
(-9)
19
(v)
(-6)
20
Question
13
13.
The
power
in the term
(
7
5
)
4
is
(i)
4
(ii)
(
-7
5
)
(iii)
1
(iv)
-4
(v)
7
5
Question
14
14.
3
√
512
1331
=
(i)
8
9
(ii)
8
13
(iii)
10
11
(iv)
6
11
(v)
8
11
Question
15
15.
Simplify
(
v
f
v
g
)
(
f
+
g
)
(
v
g
v
h
)
(
g
+
h
)
(
v
h
v
f
)
(
h
+
f
)
(i)
1
(ii)
0
(iii)
v
(
f
+
g
+
h
)
(iv)
v
(v)
-1
Question
16
16.
The value of
-2
(
1
3
)
✕
-2
(
4
3
)
(i)
81
14
(ii)
79
16
(iii)
81
16
(iv)
83
16
(v)
2
(
81
16
)
Question
17
17.
Simplify the expression
5
(
-7
4
)
✕
5
(
-7
4
)
✕
5
(
-7
4
)
(i)
15
(
-5
4
)
(ii)
16
(
-7
4
)
(iii)
14
(
-7
4
)
(iv)
15
(
-9
4
)
(v)
15
(
-7
4
)
Question
18
18.
−
7
i
(-6)
.
−
2
i
(-3)
.
−
9
i
(-4)
.
−
4
i
(-5)
=
(i)
504
i
(-18)
(ii)
−
56
i
(-90)
(iii)
−
13
i
(-90)
(iv)
−
13
i
(-13)
(v)
−
13
i
(-56)
Question
19
19.
Find the value of
(
5
4
)
256
(i)
1021
(ii)
1023
(iii)
1025
(iv)
1026
(v)
1024
Question
20
20.
6
-3
=
(i)
3
(
1
6
)
(ii)
3
(
1
2
)
(iii)
4
(
1
6
)
(iv)
2
(
1
6
)
(v)
3
(
-1
6
)
Question
21
21.
Simplify the expression
(
-3
4
)
(-7)
✕
(
-3
4
)
(-2)
(i)
(
-3
4
)
16
(ii)
(
-3
4
)
14
(iii)
(
-3
2
)
14
(iv)
(
-3
4
)
11
(v)
(
-1
2
)
14
Question
22
22.
3
√
1.3310
=
(i)
1.3
(ii)
1.1
(iii)
1.2
(iv)
0.11
(v)
1
Question
23
23.
Simplify
6
-1
+
8
0
+
3
1
+
9
-1
(i)
69
16
(ii)
77
18
(iii)
79
18
(iv)
25
6
(v)
17
4
Question
24
24.
The
exponent
in the term
6
2
is
(i)
-1
(ii)
-6
(iii)
-2
(iv)
2
(v)
6
Question
25
25.
(
(
-4
3
)
✕
-6
1
✕
(
-3
5
)
)
-4
=
(i)
-4
(
-4
3
)
✕
(-6)
-4
✕
-4
(
-3
5
)
(ii)
-4
(
-4
3
)
✕
(-3)
-4
✕
-4
(
-1
5
)
(iii)
-4
(
-4
3
)
✕
(-6)
-3
✕
-3
(
-3
5
)
(iv)
-4
(
-4
3
)
✕
(-9)
-4
✕
(-1)
-4
(v)
-4
(
-4
3
)
✕
(-6)
-5
✕
-5
(
-3
5
)
Assignment Key
1) (i)
2) (i)
3) (i)
4) (ii)
5) (i)
6) (ii)
7) (iii)
8) (ii)
9) (v)
10) (v)
11) (iii)
12) (ii)
13) (v)
14) (v)
15) (i)
16) (iii)
17) (v)
18) (i)
19) (v)
20) (i)
21) (ii)
22) (ii)
23) (ii)
24) (iv)
25) (i)
