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Class VI
Class VII
Class VIII
Class IX
Class X
CBSE Grade VIII - Algebraic Expressions and Identities
Question
1
1.
The value of
4
5
t
2
+
2
5
t
2
+
2
5
t
2
is
6
5
t
2
10
7
t
2
8
5
t
2
2
t
2
Question
2
2.
The value of
2
a
2
b
c
✕
9
a
2
is
17
a
4
b
c
20
a
4
b
c
18
a
4
b
c
16
a
4
b
c
19
a
4
b
c
Question
3
3.
The value of
(
−
7
f
2
)
✕
(
−
9
f
)
is
63
f
3
60
f
3
64
f
3
65
f
3
62
f
3
Question
4
4.
Which of the following terms is a like term of
9
a
3
?
9
a
3
a
5
a
4
(
−
a
2
)
8
Question
5
5.
The value of
100
3
4
✕
100
2
3
is
10142
1
2
10142
1
4
10142
1
6
10142
1
8
10141
5
6
Question
6
6.
The value of
3
4
j
✕
1
2
j
✕
1
4
is
1
10
j
2
5
32
j
2
3
34
j
2
1
32
j
2
3
32
j
2
Question
7
7.
The value of
1
5
u
v
−
1
4
u
v
is
(
−
1
22
u
v
)
(
−
3
20
u
v
)
(
−
1
18
u
v
)
(
−
1
20
u
v
)
1
20
u
v
Question
8
8.
The value of
1
2
m
n
−
2
3
m
n
−
3
5
m
n
−
1
3
m
n
is
(
−
11
10
m
n
)
(
−
11
8
m
n
)
(
−
13
10
m
n
)
(
−
9
10
m
n
)
(
−
11
12
m
n
)
Question
9
9.
Which of the following algebraic expressions is a monomial?
(
7
j
3
k
3
l
3
−
4
j
3
k
l
2
−
4
j
2
l
2
−
6
l
2
)
(
−
3
j
3
k
2
l
2
−
5
j
2
l
2
−
k
3
l
)
(
3
j
3
k
2
l
2
−
5
j
2
−
7
j
k
−
8
k
2
l
3
)
(
−
8
j
3
k
3
l
+
4
j
3
k
3
)
(
−
6
j
2
k
3
l
2
)
Question
10
10.
The value of
1
2
k
2
−
3
4
k
2
−
1
5
k
2
is
(
−
7
20
k
2
)
(
−
11
20
k
2
)
(
−
9
22
k
2
)
(
−
1
2
k
2
)
(
−
9
20
k
2
)
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