EduSahara™ Assignment
Name : Exponents Concepts
Chapter : Exponents
Grade : ICSE Grade VIII
License : Non Commercial Use
Question
1
1.
The
base
in the term
8
5
is
(i)
-8
(ii)
5
(iii)
6
(iv)
8
(v)
-5
Question
2
2.
The
exponent
in the term
8
9
is
(i)
7
(ii)
-9
(iii)
-8
(iv)
8
(v)
9
Question
3
3.
The
power
in the term
5
6
is
(i)
6
(ii)
5
(iii)
-5
(iv)
-6
(v)
4
Question
4
4.
The
base
in the term
4
(
9
4
)
is
(i)
(
-9
4
)
(ii)
9
4
(iii)
7
4
(iv)
4
(v)
-4
Question
5
5.
The
exponent
in the term
9
(
9
8
)
is
(i)
7
(ii)
(
-9
8
)
(iii)
-9
(iv)
9
(v)
9
8
Question
6
6.
The
power
in the term
3
(
9
2
)
is
(i)
3
(ii)
(
-9
2
)
(iii)
-3
(iv)
9
2
(v)
0
Question
7
7.
The
base
in the term
2
8
is
(i)
-2
(ii)
-8
(iii)
0
(iv)
8
1
(v)
2
Question
8
8.
The
exponent
in the term
(
5
3
)
2
is
(i)
(
-5
3
)
(ii)
-2
(iii)
5
3
(iv)
1
(v)
2
Question
9
9.
The
power
in the term
(
9
2
)
2
is
(i)
7
2
(ii)
-2
(iii)
(
-9
2
)
(iv)
9
2
(v)
2
Question
10
10.
The
base
in the term
(
9
2
)
6
is
(i)
9
2
(ii)
-6
(iii)
6
1
(iv)
4
(v)
(
-9
2
)
Question
11
11.
The
exponent
in the term
(
8/7
)
(
9
7
)
is
(i)
(
-9
7
)
(ii)
9
7
(iii)
(
-8
7
)
(iv)
8
7
(v)
6
7
Question
12
12.
The
power
in the term
(
7/5
)
(
3
2
)
is
(i)
(
-7
5
)
(ii)
(
-3
2
)
(iii)
1
(iv)
3
2
(v)
7
5
Question
13
13.
(
-5
✕
-9
)
2
=
(i)
(-5)
2
✕
-9
(ii)
(-5)
2
✕
(-12)
2
(iii)
(-5)
2
✕
(-9)
3
(iv)
(-5)
2
✕
(-6)
2
(v)
(-5)
2
✕
(-9)
2
Question
14
14.
(
5
✕
2
✕
2
)
6
=
(i)
5
6
✕
4
6
✕
4
6
(ii)
5
6
✕
2
3
✕
2
3
(iii)
5
6
✕
2
6
✕
2
6
(iv)
5
6
✕
2
5
✕
2
5
(v)
5
6
✕
2
7
✕
2
7
Question
15
15.
(
6
✕
-4
)
9/8
=
(i)
(
9
8
)
6
✕
(
9
8
)
(-2)
(ii)
(
9
8
)
6
✕
(
3
2
)
(-4)
(iii)
(
9
8
)
6
✕
(
9
8
)
(-6)
(iv)
(
9
8
)
6
✕
(
9
10
)
(-4)
(v)
(
9
8
)
6
✕
(
9
8
)
(-4)
Question
16
16.
(
5
✕
-7
✕
5
)
5/3
=
(i)
(
5
3
)
5
✕
(
5
3
)
(-10)
✕
(
5
3
)
3
(ii)
(
5
3
)
5
✕
-7
✕
5
(iii)
(
5
3
)
5
✕
(
5
3
)
(-5)
✕
(
5
3
)
7
(iv)
(
5
3
)
5
✕
(-7)
5
✕
5
5
(v)
(
5
3
)
5
✕
(
5
3
)
(-7)
✕
(
5
3
)
5
Question
17
17.
(
9
7
✕
9
7
)
8/5
=
(i)
(
8/5
)
(
9
7
)
✕
(
8/5
)
(
9
7
)
(ii)
(
8/5
)
(
9
7
)
✕
(
8/5
)
(
11
7
)
(iii)
(
8/5
)
(
9
7
)
✕
(
8/7
)
(
9
7
)
(iv)
(
8/5
)
(
9
7
)
✕
1
(v)
(
8/5
)
(
9
7
)
✕
(
8/3
)
(
9
7
)
Question
18
18.
(
5
1
✕
8
3
✕
(
-9
4
)
)
9/4
=
(i)
(
9
4
)
5
✕
(
9
4
)
2
✕
(
9/4
)
(
-11
4
)
(ii)
(
9
4
)
5
✕
(
9/2
)
(
8
3
)
✕
(
9/2
)
(
-9
4
)
(iii)
(
9
4
)
5
✕
(
9/4
)
(
8
3
)
✕
(
9/4
)
(
-9
4
)
(iv)
(
9
4
)
5
✕
(
9/4
)
(
10
3
)
✕
(
9/4
)
(
-7
4
)
(v)
(
9
4
)
5
✕
(
3/2
)
(
8
3
)
✕
(
3/2
)
(
-9
4
)
Question
19
19.
6
(
-9
2
)
=
(i)
(-9)
6
2
6
(ii)
(-9)
5
2
6
(iii)
(-9)
6
(-1)
6
(iv)
(-9)
6
5
6
(v)
(-9)
7
2
6
Question
20
20.
-2
(
-6
7
)
=
(i)
(-6)
-3
7
-2
(ii)
(-6)
-1
7
-2
(iii)
(-6)
-2
5
-2
(iv)
(-6)
-2
7
-2
(v)
(-6)
-2
10
-2
Question
21
21.
(
7/3
)
(
-9
4
)
=
(i)
(
7
3
)
(-9)
(
7
3
)
4
(ii)
(
7
5
)
(-9)
(
7
3
)
4
(iii)
(
7
3
)
(-9)
1
(iv)
(-9)
7
(
7
3
)
4
(v)
(
7
3
)
(-9)
(
7
3
)
6
Question
22
22.
(
-7/8
)
(
7
2
)
=
(i)
(
-7
8
)
7
(
-7
8
)
(-1)
(ii)
(
-7
8
)
7
(
-7
8
)
2
(iii)
(
-7
8
)
7
(
-7
8
)
5
(iv)
(
-7
6
)
7
(
-7
8
)
2
(v)
(
-7
10
)
7
(
-7
8
)
2
Question
23
23.
2
8
=
(i)
-8
(
3
2
)
(ii)
-8
(
-1
2
)
(iii)
-7
(
1
2
)
(iv)
-8
(
1
2
)
(v)
-9
(
1
2
)
Question
24
24.
(-5)
-4
=
(i)
4
(
1
5
)
(ii)
5
(
-1
5
)
(iii)
4
(
-3
5
)
(iv)
4
(
-1
5
)
(v)
3
(
-1
5
)
Question
25
25.
-9
(
-2
7
)
=
(i)
9
(
-7
2
)
(ii)
10
(
-7
2
)
(iii)
9
(
-5
2
)
(iv)
9
(
-9
2
)
(v)
8
(
-7
2
)
Question
26
26.
(
-8/9
)
(
7
6
)
=
(i)
(
8/9
)
(
6
7
)
(ii)
(
8/7
)
(
6
7
)
(iii)
(
8/11
)
(
6
7
)
(iv)
(
8/9
)
(
4
7
)
(v)
(
8/9
)
(
8
7
)
Question
27
27.
2
-8
2
7
=
(i)
2
-16
(ii)
2
-15
(iii)
(-1)
-15
(iv)
5
-15
(v)
2
-14
Question
28
28.
-7
(
7
2
)
9
(
7
2
)
=
(i)
-16
(
5
2
)
(ii)
-16
(
7
2
)
(iii)
-16
(
9
2
)
(iv)
-17
(
7
2
)
(v)
-15
(
7
2
)
Question
29
29.
(
3
2
)
3
(
5
3
)
3
=
(i)
(
-1
6
)
6
(ii)
(
-1
8
)
3
(iii)
1
(iv)
(
-1
6
)
3
(v)
(
-1
4
)
3
Question
30
30.
4
(
-8
9
)
(
-4/5
)
(
-8
9
)
=
(i)
(
24/5
)
(
-10
9
)
(ii)
(
16/3
)
(
-8
9
)
(iii)
(
24/5
)
(
-2
3
)
(iv)
(
24/5
)
(
-8
9
)
(v)
(
32/7
)
(
-8
9
)
Question
31
31.
[
(-4)
-5
]
5
=
(i)
(-4)
-25
(ii)
(-4)
-24
(iii)
(-7)
-25
(iv)
(-4)
-26
(v)
(-2)
-25
Question
32
32.
[
6
4
]
-3/2
=
(i)
6
-5
(ii)
6
-6
(iii)
8
-6
(iv)
6
-7
(v)
3
-6
Question
33
33.
[
(-5)
-3
]
-2
=
(i)
(-5)
5
(ii)
(-7)
6
(iii)
(-2)
6
(iv)
(-5)
6
(v)
(-5)
7
Question
34
34.
[
(
5
4
)
]
-4/3
6
=
(i)
(
-5
3
)
9
(ii)
(
-7
5
)
6
(iii)
(
-5
3
)
4
(iv)
(
-5
3
)
6
(v)
6
-3
Question
35
35.
[
-3
]
-5
(
-8
5
)
=
(i)
15
(
-8
5
)
(ii)
16
(
-8
5
)
(iii)
14
(
-8
5
)
(iv)
15
(
-6
5
)
(v)
(-2)
15
Question
36
36.
[
-5
]
4
(
-5
9
)
=
(i)
-20
(
-7
9
)
(ii)
-19
(
-5
9
)
(iii)
-20
(
-1
3
)
(iv)
-21
(
-5
9
)
(v)
-20
(
-5
9
)
Question
37
37.
[
(
-4/5
)
]
3
(
5
2
)
=
(i)
(
-12/5
)
(
5
2
)
(ii)
(
-8/3
)
(
5
2
)
(iii)
(
-16/7
)
(
5
2
)
(iv)
(
-12/5
)
(
7
2
)
(v)
(
-12/5
)
(
3
2
)
Question
38
38.
[
(
4/3
)
]
5
(
9
5
)
=
(i)
(
20/3
)
(
7
5
)
(ii)
(
32/5
)
(
9
5
)
(iii)
(
20/3
)
(
11
5
)
(iv)
(
20/3
)
(
9
5
)
(v)
8
(
9
5
)
Question
39
39.
The multiplicative inverse of
8
-4
is
(i)
4
(
1
8
)
(ii)
(-8)
-4
(iii)
0
(iv)
8
4
(v)
1
Question
40
40.
The multiplicative inverse of
9
(
1
5
)
is
(i)
9
(
-1
5
)
(ii)
1
(iii)
0
(iv)
5
-9
(v)
-9
(
1
5
)
Question
41
41.
Which of the following statements are true?
a)
x
m
x
n
=
x
m
n
b)
a
0
=
1
(
a
≠
0)
c)
(
x
m
)
n
=
x
(
m
+
n
)
d)
a
m
.
a
n
=
a
m
n
e)
a
.
x
m
=
a
m
.
x
m
f)
(
x
m
)
n
=
(
x
n
)
m
(i)
{d,e,b}
(ii)
{a,f,b}
(iii)
{c,f}
(iv)
{b,f}
(v)
{a,b}
Question
42
42.
-1
6
=
(i)
∞
(ii)
-1
(iii)
0
(iv)
1
(v)
undefined
Question
43
43.
-1
5
=
(i)
1
(ii)
∞
(iii)
0
(iv)
undefined
(v)
-1
Question
44
44.
1
0
=
(i)
1
(ii)
0
(iii)
∞
(iv)
undefined
(v)
-1
Question
45
45.
0
0
=
(i)
1
(ii)
undefined
(iii)
-1
(iv)
0
(v)
∞
Question
46
46.
-10
0
=
(i)
undefined
(ii)
-1
(iii)
∞
(iv)
1
(v)
0
Question
47
47.
0
6
=
(i)
-1
(ii)
undefined
(iii)
1
(iv)
∞
(v)
0
Question
48
48.
√
169
225
=
(i)
11
15
(ii)
1
(iii)
13
17
(iv)
13
15
Question
49
49.
Find the reciprocal of
9
5
(i)
6
(
1
9
)
(ii)
4
(
1
9
)
(iii)
5
(
1
3
)
(iv)
5
(
-1
9
)
(v)
5
(
1
9
)
Question
50
50.
Find the reciprocal of
5
(
-5
9
)
(i)
5
(
-11
5
)
(ii)
4
(
-9
5
)
(iii)
5
(
-9
5
)
(iv)
6
(
-9
5
)
(v)
5
(
-7
5
)
Assignment Key
1) (iv)
2) (v)
3) (i)
4) (ii)
5) (iv)
6) (i)
7) (v)
8) (iii)
9) (iv)
10) (iii)
11) (iv)
12) (v)
13) (v)
14) (iii)
15) (v)
16) (v)
17) (i)
18) (iii)
19) (i)
20) (iv)
21) (i)
22) (ii)
23) (iv)
24) (iv)
25) (i)
26) (i)
27) (ii)
28) (ii)
29) (iv)
30) (iv)
31) (i)
32) (ii)
33) (iv)
34) (iv)
35) (i)
36) (v)
37) (i)
38) (iv)
39) (iv)
40) (v)
41) (iv)
42) (iv)
43) (v)
44) (i)
45) (ii)
46) (iv)
47) (v)
48) (iv)
49) (v)
50) (iii)
