EduSahara™ Worksheet
Name : Chapter Based Worksheet
Chapter : Exponents
Grade : ICSE Grade VII
License : Non Commercial Use
Question
1
1.
The multiplicative inverse of
7
(
1
2
)
is
(i)
7
(
-1
2
)
(ii)
0
(iii)
-7
(
1
2
)
(iv)
2
-7
(v)
1
Question
2
2.
Simplify the expression
2
(
-4
7
)
✕
2
(
-4
7
)
✕
5
(
-4
7
)
(i)
9
(
-6
7
)
(ii)
10
(
-4
7
)
(iii)
9
(
-2
7
)
(iv)
8
(
-4
7
)
(v)
9
(
-4
7
)
Question
3
3.
Expand the following base power
5
(
4
5
)
(i)
32
3125
(ii)
4096
15625
(iii)
256
625
(iv)
1024
3125
(v)
7776
3125
Question
4
4.
(
4
3
)
4
✕
(
5
(-3)
)
6
✕
(
7
4
)
-5
(
4
5
)
-4
✕
(
5
6
)
3
✕
(
7
2
)
3
=
(i)
4
32
✕
5
(-36)
✕
7
(-25)
(ii)
4
32
✕
5
(-35)
✕
7
(-26)
(iii)
4
33
✕
5
(-36)
✕
7
(-26)
(iv)
4
32
✕
5
(-36)
✕
7
(-26)
Question
5
5.
−
3
c
2
.
−
5
c
3
=
(i)
15
c
6
(ii)
5
c
15
(iii)
−
8
c
6
(iv)
−
8
c
5
(v)
15
c
5
Question
6
6.
4
u
3
.
5
u
6
.
7
u
6
=
(i)
16
u
15
(ii)
15
u
140
(iii)
140
u
108
(iv)
16
u
108
(v)
140
u
15
Question
7
7.
[
(
-3
2
)
]
-5
(-4)
=
(i)
(
15
2
)
(-2)
(ii)
(
29
4
)
(-4)
(iii)
(
15
2
)
(-7)
(iv)
(-4)
8
(v)
(
15
2
)
(-4)
Question
8
8.
27
d
4
e
4
f
4
=
(i)
29
✕
d
✕
d
✕
d
✕
d
✕
e
✕
e
✕
e
✕
e
✕
f
✕
f
✕
f
✕
f
(ii)
27
✕
d
✕
d
✕
d
✕
d
✕
d
✕
e
✕
e
✕
e
✕
e
✕
f
✕
f
✕
f
✕
f
(iii)
27
✕
d
✕
d
✕
d
✕
e
✕
e
✕
e
✕
e
✕
f
✕
f
✕
f
✕
f
(iv)
27
✕
d
✕
d
✕
d
✕
d
✕
e
✕
e
✕
e
✕
e
✕
f
✕
f
✕
f
✕
f
(v)
24
✕
d
✕
d
✕
d
✕
d
✕
e
✕
e
✕
e
✕
e
✕
f
✕
f
✕
f
✕
f
Question
9
9.
Simplify the expression
-8
(
-2
7
)
✕
-8
(
-2
7
)
✕
-8
(
-2
7
)
(i)
-25
(
-2
7
)
(ii)
-24
(
-4
7
)
(iii)
-23
(
-2
7
)
(iv)
-24
(
-2
7
)
(v)
-21
(
-2
7
)
Question
10
10.
Simplify the expression
(-9)
-2
✕
-2
(
-2
3
)
(i)
4
-2
(ii)
6
-3
(iii)
6
-1
(iv)
6
-2
(v)
9
-2
Question
11
11.
Simplify
3
2
✕
(-2)
2
3
2
✕
(-5)
2
(i)
2
(
2
5
)
(ii)
2
(
4
5
)
(iii)
3
(
2
5
)
(iv)
0
(v)
2
5
Question
12
12.
(
s
14
s
7
)
7
=
(i)
7
s
49
(ii)
s
21
(iii)
s
49
(iv)
s
7
(v)
s
14
Question
13
13.
Find the exponential notation of
5
24
(i)
5
2
3
✕
3
-1
(ii)
5
5
3
✕
3
(iii)
5
2
2
3
✕
3
(iv)
4
2
3
✕
3
(v)
5
2
3
✕
3
Question
14
14.
Simplify
(-2)
-2
✕
(-3)
-2
✕
(-5)
3
2
2
✕
(-3)
-2
✕
(-3)
2
(i)
-1
✕
5
3
2
4
✕
3
2
(ii)
-1
✕
5
3
2
4
✕
5
2
(iii)
-2
✕
5
3
2
4
✕
3
2
(iv)
-1
✕
5
4
2
4
✕
3
2
(v)
-1
✕
5
3
(-1)
4
✕
3
2
Question
15
15.
The multiplicative inverse of
6
-8
is
(i)
(-6)
-8
(ii)
1
(iii)
0
(iv)
6
8
(v)
8
(
1
6
)
Question
16
16.
13
✕
n
✕
n
✕
n
✕
n
=
(i)
13
n
4
(ii)
16
n
4
(iii)
13
n
3
(iv)
13
n
5
(v)
11
n
4
Question
17
17.
Simplify the expression
(-3)
7
✕
(-3)
3
✕
(-3)
2
(i)
(-1)
12
(ii)
(-3)
13
(iii)
(-3)
12
(iv)
(-3)
11
(v)
(-6)
12
Question
18
18.
Find the exponential notation of
(
-14
15
)
(i)
-2
✕
2
✕
7
3
✕
5
(ii)
-1
✕
2
✕
7
3
✕
2
(iii)
-1
✕
2
✕
7
3
✕
5
(iv)
-1
✕
2
✕
7
6
✕
5
(v)
(-1)
2
✕
2
✕
7
3
✕
5
Question
19
19.
Simplify the expression
9
(
-3
5
)
✕
9
(
-3
5
)
✕
9
(
-3
5
)
(i)
28
(
-3
5
)
(ii)
27
(
-1
5
)
(iii)
26
(
-3
5
)
(iv)
(-1)
27
(v)
27
(
-3
5
)
Question
20
20.
2
t
6
.
3
t
3
=
(i)
6
t
18
(ii)
6
t
9
(iii)
5
t
9
(iv)
5
t
18
(v)
9
t
6
Question
21
21.
If
1296
✕
6
h
=
6
6
, find
h
(i)
5
(ii)
1
(iii)
3
(iv)
2
(v)
(-1)
Question
22
22.
v
15
v
8
=
(i)
v
7
(ii)
15
v
7
(iii)
8
v
7
(iv)
v
23
(v)
v
120
Question
23
23.
(-3)
8
=
(i)
(-3)
8
3
8
(ii)
(-3)
7
1
(iii)
(-3)
9
1
(iv)
(-3)
8
(-1)
8
(v)
(-3)
8
1
Question
24
24.
25
d
4
e
2
=
(i)
25
✕
d
✕
d
✕
d
✕
d
✕
e
✕
e
(ii)
25
✕
d
✕
d
✕
d
✕
e
✕
e
(iii)
22
✕
d
✕
d
✕
d
✕
d
✕
e
✕
e
(iv)
28
✕
d
✕
d
✕
d
✕
d
✕
e
✕
e
(v)
25
✕
d
✕
d
✕
d
✕
d
✕
d
✕
e
✕
e
Question
25
25.
The value of
-2
(
4
3
)
✕
-3
(
-5
2
)
(i)
(
-9
250
)
(ii)
(
-9
248
)
(iii)
(
-11
250
)
(iv)
(
-7
250
)
(v)
2
(
-9
250
)
Assignment Key
1) (iii)
2) (v)
3) (iv)
4) (iv)
5) (v)
6) (v)
7) (v)
8) (iv)
9) (iv)
10) (iv)
11) (i)
12) (iii)
13) (v)
14) (i)
15) (iv)
16) (i)
17) (iii)
18) (iii)
19) (v)
20) (ii)
21) (iv)
22) (i)
23) (v)
24) (i)
25) (i)
