EduSahara™ Assignment
Name : Laws of Exponents
Chapter : Exponents and Powers
Grade : CBSE Grade VII
License : Non Commercial Use
Question
1
1.
(
6
✕
-9
)
-4
=
(i)
6
-4
✕
(-9)
-4
(ii)
6
-4
✕
(-7)
-4
(iii)
6
-4
✕
(-9)
-3
(iv)
6
-4
✕
(-9)
-5
(v)
6
-4
✕
(-11)
-4
Question
2
2.
(
2
✕
-4
✕
-6
)
-6
=
(i)
2
-6
✕
(-1)
-6
✕
(-3)
-6
(ii)
2
-6
✕
(-4)
-7
✕
(-6)
-7
(iii)
2
-6
✕
(-4)
-5
✕
(-6)
-5
(iv)
2
-6
✕
(-4)
-6
✕
(-6)
-6
(v)
2
-6
✕
(-6)
-6
✕
(-8)
-6
Question
3
3.
(
(
-2
9
)
✕
9
8
)
2
=
(i)
2
(
-2
9
)
✕
2
(
9
8
)
(ii)
2
(
-2
9
)
✕
2
(
7
8
)
(iii)
2
(
-2
9
)
✕
9
8
(iv)
2
(
-2
9
)
✕
3
(
9
8
)
(v)
2
(
-2
9
)
✕
2
(
11
8
)
Question
4
4.
(
(
-9
4
)
✕
-5
1
✕
6
5
)
9
=
(i)
9
(
-9
4
)
✕
(-8)
9
✕
9
(
4
5
)
(ii)
9
(
-9
4
)
✕
(-3)
9
✕
9
(
8
5
)
(iii)
9
(
-9
4
)
✕
(-5)
10
✕
10
(
6
5
)
(iv)
9
(
-9
4
)
✕
(-5)
9
✕
9
(
6
5
)
(v)
9
(
-9
4
)
✕
(-5)
8
✕
8
(
6
5
)
Question
5
5.
8
(
8
3
)
=
(i)
8
7
3
8
(ii)
8
8
1
(iii)
8
9
3
8
(iv)
8
8
3
8
(v)
8
8
6
8
Question
6
6.
-7
(
9
2
)
=
(i)
9
-6
2
-7
(ii)
9
-8
2
-7
(iii)
9
-7
5
-7
(iv)
9
-7
2
-7
(v)
9
-7
2
-10
Question
7
7.
(-9)
8
=
(i)
-8
(
-1
3
)
(ii)
-8
(
1
9
)
(iii)
-9
(
-1
9
)
(iv)
-7
(
-1
9
)
(v)
-8
(
-1
9
)
Question
8
8.
7
-6
=
(i)
6
(
-1
7
)
(ii)
7
(
1
7
)
(iii)
6
(
3
7
)
(iv)
5
(
1
7
)
(v)
6
(
1
7
)
Question
9
9.
4
(
-9
8
)
=
(i)
-4
(
-8
9
)
(ii)
-4
(
-10
9
)
(iii)
-4
(
-2
3
)
(iv)
-3
(
-8
9
)
(v)
-5
(
-8
9
)
Question
10
10.
2
3
2
5
=
(i)
2
-1
(ii)
2
-2
(iii)
4
-2
(iv)
2
-4
(v)
2
-3
Question
11
11.
7
(
9
2
)
2
(
9
2
)
=
(i)
5
(
11
2
)
(ii)
5
(
7
2
)
(iii)
4
(
9
2
)
(iv)
6
(
9
2
)
(v)
5
(
9
2
)
Question
12
12.
[
5
-4
]
5
=
(i)
5
-20
(ii)
7
-20
(iii)
5
-21
(iv)
2
-20
(v)
5
-19
Question
13
13.
[
4
]
-2
(
-5
3
)
=
(i)
(-1)
-8
(ii)
-7
(
-5
3
)
(iii)
-9
(
-5
3
)
(iv)
-8
(
-5
3
)
(v)
-8
(
-7
3
)
Question
14
14.
Simplify the expression
7
7
✕
7
7
(i)
7
15
(ii)
7
14
(iii)
4
14
(iv)
7
13
(v)
10
14
Question
15
15.
Simplify the expression
5
-4
✕
5
-4
(i)
5
-8
(ii)
5
-9
(iii)
2
-8
(iv)
7
-8
(v)
5
-7
Question
16
16.
Simplify the expression
(-3)
7
✕
(-3)
7
✕
(-3)
7
(i)
(-3)
20
(ii)
(-3)
21
(iii)
(-3)
22
(iv)
(-6)
21
(v)
(-1)
21
Question
17
17.
Simplify the expression
(-5)
-2
✕
(-5)
-2
(i)
(-5)
-3
(ii)
(-5)
-5
(iii)
(-3)
-4
(iv)
(-5)
-4
(v)
(-7)
-4
Question
18
18.
Simplify the expression
6
(
7
2
)
✕
6
(
7
2
)
(i)
11
(
7
2
)
(ii)
12
(
9
2
)
(iii)
12
(
5
2
)
(iv)
12
(
7
2
)
(v)
13
(
7
2
)
Question
19
19.
Simplify the expression
-5
(
9
5
)
✕
-5
(
9
5
)
(i)
-11
(
9
5
)
(ii)
-10
(
7
5
)
(iii)
-10
(
11
5
)
(iv)
-10
(
9
5
)
(v)
-9
(
9
5
)
Question
20
20.
Simplify the expression
4
6
✕
4
5
✕
4
6
(i)
4
18
(ii)
1
(iii)
4
16
(iv)
4
17
(v)
6
17
Question
21
21.
Simplify the expression
2
-2
✕
2
-9
✕
2
-2
(i)
2
-16
(ii)
2
-14
(iii)
5
-13
(iv)
2
-12
(v)
2
-13
Question
22
22.
Simplify the expression
(-7)
6
✕
(-7)
5
✕
(-7)
5
(i)
(-7)
16
(ii)
(-7)
17
(iii)
(-9)
16
(iv)
(-4)
16
(v)
(-7)
15
Question
23
23.
Simplify the expression
(-9)
-5
✕
(-9)
-5
(i)
(-9)
-10
(ii)
(-7)
-10
(iii)
(-9)
-11
(iv)
(-9)
-9
(v)
(-11)
-10
Question
24
24.
Simplify the expression
8
5
✕
8
7
✕
8
7
(i)
8
18
(ii)
10
19
(iii)
8
19
(iv)
5
19
(v)
8
20
Question
25
25.
Simplify the expression
2
9
✕
5
9
✕
5
9
(i)
50
8
(ii)
52
9
(iii)
50
9
(iv)
48
9
(v)
50
10
Question
26
26.
Simplify the expression
2
-6
✕
6
-6
✕
7
-6
(i)
84
-6
(ii)
81
-6
(iii)
84
-5
(iv)
87
-6
(v)
84
-7
Question
27
27.
6
x
7
.
8
x
9
=
(i)
48
x
16
(ii)
48
x
63
(iii)
14
x
63
(iv)
14
x
16
(v)
16
x
48
Question
28
28.
2
d
6
.
4
d
8
.
6
d
7
=
(i)
12
d
21
(ii)
48
d
336
(iii)
21
d
48
(iv)
12
d
336
(v)
48
d
21
Question
29
29.
5
n
3
.
6
n
3
.
2
n
3
.
3
n
9
=
(i)
14
n
9
(ii)
90
n
81
(iii)
9
n
90
(iv)
14
n
81
(v)
180
n
18
Question
30
30.
−
9
n
2
.
−
8
n
(-8)
=
(i)
−
17
n
(-16)
(ii)
−
6
n
72
(iii)
72
n
(-16)
(iv)
72
n
(-6)
(v)
−
17
n
(-6)
Assignment Key
1) (i)
2) (iv)
3) (i)
4) (iv)
5) (iv)
6) (iv)
7) (v)
8) (v)
9) (i)
10) (ii)
11) (v)
12) (i)
13) (iv)
14) (ii)
15) (i)
16) (ii)
17) (iv)
18) (iv)
19) (iv)
20) (iv)
21) (v)
22) (i)
23) (i)
24) (iii)
25) (iii)
26) (i)
27) (i)
28) (v)
29) (v)
30) (iv)
