EduSahara™ Worksheet
Name : Chapter Based Worksheet
Chapter : Exponents
Grade : ICSE Grade VIII
License : Non Commercial Use
Question
1
1.
(-6)
-6
(-6)
-4
=
(i)
(-6)
-1
(ii)
(-6)
-2
(iii)
(-4)
-2
(iv)
(-9)
-2
(v)
(-6)
-3
Question
2
2.
(
-7
✕
3
✕
7
)
-4/7
=
(i)
(
-4
7
)
(-7)
✕
1
✕
(
-4
7
)
5
(ii)
(
-4
7
)
(-7)
✕
(
-4
7
)
3
✕
(
-4
7
)
7
(iii)
(
-4
7
)
(-7)
✕
(
-4
7
)
6
✕
(
-4
7
)
9
(iv)
(
-4
7
)
(-7)
✕
(
-4
9
)
3
✕
(
-4
9
)
7
(v)
(
-4
7
)
(-7)
✕
(
-4
5
)
3
✕
(
-4
5
)
7
Question
3
3.
Which of the following statements are true?
a)
a
.
x
m
=
a
m
.
x
m
b)
(
x
m
)
n
=
x
(
m
+
n
)
c)
a
m
.
a
n
=
a
m
n
d)
x
m
x
n
=
x
m
n
e)
a
0
=
1
(
a
≠
0)
f)
(
x
m
)
n
=
(
x
n
)
m
(i)
{e,f}
(ii)
{b,f}
(iii)
{c,d,e}
(iv)
{a,e}
(v)
{a,f,e}
Question
4
4.
(
-4
✕
-7
)
-4/7
=
(i)
(
-4
7
)
(-4)
✕
(
-4
9
)
(-7)
(ii)
(
-4
7
)
(-4)
✕
(
-4
5
)
(-7)
(iii)
(
-4
7
)
(-4)
✕
(
-4
7
)
(-7)
(iv)
(
-4
7
)
(-4)
✕
(
-4
7
)
(-9)
(v)
(
-4
7
)
(-4)
✕
(
-4
7
)
(-4)
Question
5
5.
√
0.1600
=
(i)
0.5
(ii)
0.04
(iii)
0.3
(iv)
0.4
(v)
0.6
Question
6
6.
6
(
-3
8
)
=
(i)
(-3)
7
8
6
(ii)
(-3)
6
10
6
(iii)
(-3)
6
8
6
(iv)
(-3)
5
8
6
(v)
(-3)
6
6
6
Question
7
7.
The
base
in the term
9
(
7
2
)
is
(i)
7
2
(ii)
-9
(iii)
(
-7
2
)
(iv)
9
(v)
5
2
Question
8
8.
0
0
=
(i)
-1
(ii)
∞
(iii)
1
(iv)
0
(v)
undefined
Question
9
9.
(
5
2
✕
7
4
)
9
=
(i)
5
18
✕
7
36
(ii)
5
36
✕
7
18
(iii)
5
2
✕
7
36
(iv)
5
2
✕
7
4
(v)
5
18
✕
7
4
Question
10
10.
Find the square root of
121
d
2
144
e
14
(i)
11
d
12
e
14
(ii)
11
d
2
12
e
7
(iii)
11
d
4
12
e
28
(iv)
11
d
2
12
e
14
(v)
11
d
12
e
7
Question
11
11.
[
5
-3
]
-2
=
(i)
5
7
(ii)
5
5
(iii)
2
6
(iv)
5
6
(v)
8
6
Question
12
12.
Simplify the expression
(-9)
7
✕
(-9)
2
✕
(-9)
7
(i)
(-12)
16
(ii)
(-6)
16
(iii)
(-9)
16
(iv)
(-9)
15
(v)
(-9)
17
Question
13
13.
Simplify the expression
(
-9/4
)
(
-7
3
)
✕
(
-9/4
)
(
-7
9
)
(i)
(
-9/4
)
(
17
9
)
(ii)
(
-9/4
)
(
49
27
)
(iii)
(
-9/4
)
(
47
27
)
(iv)
(
-3/2
)
(
49
27
)
(v)
(
-9/2
)
(
49
27
)
Question
14
14.
Simplify the expression
9
(
8
7
)
✕
9
(
8
7
)
✕
9
(
8
7
)
(i)
27
(
8
7
)
(ii)
27
(
10
7
)
(iii)
27
(
6
7
)
(iv)
28
(
8
7
)
(v)
26
(
8
7
)
Question
15
15.
The
power
in the term
5
4
is
(i)
5
(ii)
-4
(iii)
4
(iv)
-5
(v)
2
Question
16
16.
The
power
in the term
(
7
2
)
2
is
(i)
5
2
(ii)
-2
(iii)
(
-7
2
)
(iv)
7
2
(v)
2
Question
17
17.
Simplify the expression
-3
(
-2
9
)
✕
-3
(
-2
5
)
(i)
-3
(
2
15
)
(ii)
-4
(
4
45
)
(iii)
-2
(
4
45
)
(iv)
-3
(
4
45
)
(v)
-3
(
2
45
)
Question
18
18.
(
j
−
k
)
(-5)
.
(
j
−
k
)
(-6)
=
(i)
(
j
−
k
)
(-11)
(ii)
(
j
−
k
)
(-5)
(iii)
(
j
−
k
)
30
(iv)
(
j
−
k
)
(v)
(
j
−
k
)
(-6)
Question
19
19.
Simplify the expression
(-6)
3
✕
3
(
-2
7
)
✕
3
(
-3
5
)
(i)
4
(
-36
35
)
(ii)
2
(
-36
35
)
(iii)
3
(
-36
35
)
(iv)
3
(
-38
35
)
(v)
3
(
-34
35
)
Question
20
20.
8
g
3
.
4
g
9
.
6
g
9
.
9
g
9
=
(i)
288
g
243
(ii)
1728
g
30
(iii)
21
g
243
(iv)
21
g
21
(v)
21
g
288
Question
21
21.
Simplify the expression
6
(
7
4
)
✕
6
(
8
5
)
(i)
7
(
14
5
)
(ii)
6
(
12
5
)
(iii)
6
(
14
5
)
(iv)
5
(
14
5
)
(v)
6
(
16
5
)
Question
22
22.
The
power
in the term
(
9/4
)
(
9
8
)
is
(i)
(
-9
4
)
(ii)
9
8
(iii)
7
4
(iv)
(
-9
8
)
(v)
2
1
4
Question
23
23.
Simplify
(
y
(
g
+
h
)
)
(
g
−
h
)
(
y
(
h
+
i
)
)
(
h
−
i
)
(
y
(
i
+
g
)
)
(
i
−
g
)
(i)
y
(
g
+
h
+
i
)
(ii)
1
(iii)
-1
(iv)
0
(v)
y
Question
24
24.
Simplify the expression
6
(
8
7
)
✕
7
6
✕
6
(
8
7
)
(i)
7
(
64
7
)
(ii)
6
(
66
7
)
(iii)
6
(
64
7
)
(iv)
5
(
64
7
)
(v)
6
(
62
7
)
Question
25
25.
The
base
in the term
(
9/7
)
(
8
5
)
is
(i)
8
5
(ii)
6
5
(iii)
9
7
(iv)
(
-9
7
)
(v)
(
-8
5
)
Assignment Key
1) (ii)
2) (ii)
3) (i)
4) (iii)
5) (iv)
6) (iii)
7) (i)
8) (v)
9) (i)
10) (v)
11) (iv)
12) (iii)
13) (ii)
14) (i)
15) (iii)
16) (iv)
17) (iv)
18) (i)
19) (iii)
20) (ii)
21) (iii)
22) (v)
23) (ii)
24) (iii)
25) (i)
