EduSahara™ Assignment
Name : Simplification of Base Power Expressions
Chapter : Exponents and Powers
Grade : CBSE Grade VII
License : Non Commercial Use
Question
1
1.
Simplify
(-4)
2
✕
(-4)
-2
(-3)
-2
✕
5
2
(i)
2
(
1
5
)
(ii)
3
5
(iii)
2
(
3
5
)
(iv)
1
(v)
3
(
3
5
)
Question
2
2.
Simplify
(-3)
-2
✕
(-5)
2
✕
(-2)
2
5
2
✕
2
2
✕
3
-2
(i)
1
(ii)
0
(iii)
-2
(iv)
3
(v)
2
Question
3
3.
Simplify
4
-2
✕
4
2
✕
(-2)
-2
✕
(-4)
-2
(-5)
-2
✕
(-2)
2
✕
(-4)
-2
✕
(-3)
-2
(i)
2
(
17
4
)
(ii)
15
4
(iii)
2
(
15
4
)
(iv)
3
(
15
4
)
(v)
2
(
13
4
)
Question
4
4.
Simplify
3
-2
✕
(-3)
2
3
2
✕
5
3
(i)
1
6
2
✕
5
3
(ii)
1
3
2
✕
5
3
(iii)
2
3
2
✕
5
3
(iv)
1
3
2
✕
3
3
(v)
0
3
2
✕
5
3
Question
5
5.
Simplify
(-3)
3
✕
5
2
✕
5
2
4
3
✕
3
-2
✕
(-4)
-3
(i)
3
5
✕
3
4
(ii)
5
5
✕
5
4
(iii)
3
5
✕
5
3
(iv)
3
6
✕
5
4
(v)
3
5
✕
5
4
Question
6
6.
Simplify
(-3)
2
✕
4
2
✕
(-4)
2
(-3)
2
✕
(-2)
3
✕
3
3
✕
4
3
(i)
-1
✕
1
5
✕
3
3
(ii)
-1
✕
1
2
✕
3
3
(iii)
(-1)
2
✕
1
2
✕
3
3
(iv)
-1
✕
1
2
✕
3
(v)
-2
✕
1
2
✕
3
3
Question
7
7.
Simplify
(-3)
-3
✕
4
-3
✕
(-3)
-2
✕
5
-3
5
-3
✕
3
-3
✕
(-3)
-2
(i)
-1
✕
1
4
6
(ii)
-1
✕
1
(-1)
6
(iii)
-1
✕
1
2
6
(iv)
-2
✕
1
2
6
(v)
-1
✕
2
2
6
Question
8
8.
e
12
f
15
e
2
f
7
=
(i)
e
10
f
8
(ii)
e
14
f
22
(iii)
e
10
f
22
(iv)
e
27
f
9
(v)
e
14
f
8
Question
9
9.
(
s
11
s
7
)
9
=
(i)
9
s
36
(ii)
s
11
(iii)
s
36
(iv)
s
18
(v)
s
7
Question
10
10.
(
g
8
g
)
5
=
(i)
g
8
g
(ii)
5
g
40
g
(iii)
g
40
g
(iv)
g
(
8
g
+
5
)
Question
11
11.
(
x
−
y
)
(-8)
.
(
x
−
y
)
5
=
(i)
(
x
−
y
)
(-40)
(ii)
(
x
−
y
)
(-8)
(iii)
(
x
−
y
)
(-13)
(iv)
(
x
−
y
)
5
(v)
(
x
−
y
)
(-3)
Question
12
12.
(
4
9
✕
3
5
)
4
=
(i)
4
9
✕
3
5
(ii)
4
36
✕
3
20
(iii)
4
9
✕
3
20
(iv)
4
36
✕
3
5
(v)
4
20
✕
3
36
Question
13
13.
(
9
(-6)
)
5
✕
(
10
(-5)
)
3
✕
(
11
(-3)
)
2
(
9
(-4)
)
-6
✕
(
10
(-2)
)
-5
✕
(
11
(-3)
)
-3
=
(i)
9
(-54)
✕
10
(-25)
✕
11
(-15)
(ii)
9
(-53)
✕
10
(-25)
✕
11
(-15)
(iii)
9
(-54)
✕
10
(-24)
✕
11
(-15)
(iv)
9
(-54)
✕
10
(-25)
✕
11
(-14)
Question
14
14.
[
(
7
3
)
4
✕
(
7
4
)
3
]
÷
7
24
(i)
2
(ii)
4
(iii)
1
(iv)
0
(v)
7
Question
15
15.
[
-7
(
2
3
)
✕
-7
(
7
9
)
]
÷
[
7
(
3
2
)
✕
7
(
9
7
)
]
=
(i)
0
(ii)
(-1)
(iii)
7
9
(iv)
2
3
(v)
1
Assignment Key
1) (iii)
2) (i)
3) (iii)
4) (ii)
5) (v)
6) (ii)
7) (iii)
8) (i)
9) (iii)
10) (iii)
11) (v)
12) (ii)
13) (i)
14) (iii)
15) (v)
