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Class VI
Class VII
Class VIII
Class IX
Class X
ICSE Grade VII - Exponents
Question
1
1.
If
2
(
10
x
+
4
)
=
8
(
3
x
+
5
)
, find
x
10
9
14
12
11
Question
2
2.
If
f
s
=
g
,
g
t
=
h
and
h
u
=
f
, then
s
t
u
=
(
f
+
g
+
h
)
-1
0
f
g
h
1
Question
3
3.
Which of the following statements are true?
a)
(
x
m
)
n
=
x
(
m
+
n
)
b)
a
.
x
m
=
a
m
.
x
m
c)
a
m
.
a
n
=
a
m
n
d)
(
x
m
)
n
=
(
x
n
)
m
e)
x
m
x
n
=
x
m
n
f)
a
0
=
1
(
a
≠
0)
{b,f}
{a,f,d}
{c,e,d}
{d,f}
{a,d}
Question
4
4.
The
power
in the term
8
4
is
-8
8
2
-4
4
Question
5
5.
Simplify the expression
3
-9
✕
3
-6
✕
3
-2
3
-19
3
-17
3
-18
6
-17
3
-16
Question
6
6.
r
8
r
18
=
1
r
26
1
r
(-10)
r
10
1
r
144
1
r
10
Question
7
7.
The value of
3
(
2
3
)
÷
2
(
1
2
)
34
27
10
9
32
27
2
(
32
27
)
32
25
Question
8
8.
(
w
3
x
2
y
5
)
5
=
(
5
w
3
x
2
5
y
5
)
(
w
15
x
10
y
25
)
(
w
8
x
7
y
10
)
(
w
15
x
10
y
10
)
(
w
8
x
7
y
25
)
Question
9
9.
Simplify the expression
9
(
-6
7
)
✕
9
(
-6
7
)
✕
9
(
-6
7
)
28
(
-6
7
)
27
(
-4
7
)
26
(
-6
7
)
27
(
-8
7
)
27
(
-6
7
)
Question
10
10.
Find the reciprocal of
5
9
8
(
1
5
)
9
(
-1
5
)
9
(
1
5
)
10
(
1
5
)
9
(
3
5
)
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