EduSahara™ Worksheet
Name : Chapter Based Worksheet
Chapter : Exponents and Powers
Grade : CBSE Grade VIII
License : Non Commercial Use
Question
1
1.
-1
9
=
(i)
-1
(ii)
1
(iii)
∞
(iv)
0
(v)
undefined
Question
2
2.
0
1
=
(i)
undefined
(ii)
0
(iii)
∞
(iv)
-1
(v)
1
Question
3
3.
Simplify
(
2
f
.
9
(
f
−
5
)
.
16
(
f
−
4
)
4
(
f
−
5
)
.
3
(
f
−
4
)
.
4
(
f
−
3
)
)
(i)
2
(
f
+
5
)
.
3
(
−
f
+
3
)
.
4
(
−
f
+
2
)
(ii)
2
(
−
f
+
10
)
.
3
(
−
f
+
3
)
.
4
(
−
f
+
2
)
(iii)
2
(
−
f
+
10
)
.
3
(
f
−
6
)
.
4
(
f
−
5
)
(iv)
2
5
.
3
(
−
1
)
.
4
(
−
1
)
Question
4
4.
-5
(
-8
7
)
=
(i)
(-8)
-5
10
-5
(ii)
(-8)
-4
7
-5
(iii)
(-8)
-6
7
-5
(iv)
(-8)
-5
7
-5
(v)
(-8)
-5
5
-5
Question
5
5.
6
-7
=
(i)
7
(
1
2
)
(ii)
6
(
1
6
)
(iii)
7
(
-1
6
)
(iv)
8
(
1
6
)
(v)
7
(
1
6
)
Question
6
6.
[
(
-5
3
)
]
-3
(-4)
=
(i)
(-7)
5
(ii)
(-4)
4
(iii)
(-1)
5
(iv)
(-4)
5
(v)
(-4)
6
Question
7
7.
The value of
-3
(
2
3
)
+
-2
(
4
3
)
(i)
63
16
(ii)
65
16
(iii)
61
16
(iv)
2
(
63
16
)
(v)
9
2
Question
8
8.
Simplify the expression
(-6)
-8
✕
(-6)
-8
✕
(-6)
-8
(i)
(-6)
-24
(ii)
(-4)
-24
(iii)
(-8)
-24
(iv)
(-6)
-23
(v)
(-6)
-25
Question
9
9.
Simplify
2
2
✕
4
-3
5
-2
✕
(-3)
-2
(i)
3
(
15
4
)
(ii)
2
(
15
4
)
(iii)
15
4
(iv)
2
(
13
4
)
(v)
2
(
17
4
)
Question
10
10.
Simplify
4
-3
✕
(-5)
-3
✕
2
2
2
-3
✕
(-2)
3
✕
(-3)
3
(i)
-1
✕
0
2
4
✕
3
3
✕
5
3
(ii)
-1
✕
1
2
4
✕
3
3
✕
5
3
(iii)
-1
✕
2
2
4
✕
3
3
✕
5
3
(iv)
-1
✕
1
5
4
✕
3
3
✕
5
3
(v)
-1
✕
1
2
4
✕
3
3
✕
3
3
Question
11
11.
Simplify the expression
(-5)
-9
✕
(-5)
-4
(i)
(-5)
-12
(ii)
(-2)
-13
(iii)
(-5)
-13
(iv)
(-8)
-13
(v)
(-5)
-14
Question
12
12.
Simplify
(-4)
2
(-4)
-2
(i)
2
9
(ii)
4
8
(iii)
2
8
(iv)
2
5
(v)
2
7
Question
13
13.
Write the given number in usual form
1.814211
✕
10
-3
(i)
0.001814211
(ii)
0.01814211
(iii)
0.0001814211
(iv)
0.1814211
(v)
0.00001814211
Question
14
14.
(
-2
1
✕
(
-3
2
)
)
7
=
(i)
(-2)
7
✕
7
(
-3
2
)
(ii)
(-2)
7
✕
8
(
-3
2
)
(iii)
(-2)
7
✕
7
(
-5
2
)
(iv)
(-2)
7
✕
7
(
-1
2
)
(v)
(-2)
7
✕
6
(
-3
2
)
Question
15
15.
Simplify the expression
-2
(
9
2
)
✕
-2
(
9
7
)
(i)
-1
(
81
14
)
(ii)
-2
(
79
14
)
(iii)
-2
(
83
14
)
(iv)
-2
(
81
14
)
(v)
-3
(
81
14
)
Question
16
16.
Simplify the expression
(-7)
-3
✕
(-7)
-3
✕
(-7)
-6
(i)
(-7)
-12
(ii)
(-9)
-12
(iii)
(-5)
-12
(iv)
(-7)
-11
(v)
(-7)
-13
Question
17
17.
(
4
3
✕
(
-6
5
)
)
-3/7
=
(i)
(
-3/7
)
(
4
3
)
✕
(
-1/3
)
(
-6
5
)
(ii)
(
-3/7
)
(
4
3
)
✕
(
-3/5
)
(
-6
5
)
(iii)
(
-3/7
)
(
4
3
)
✕
(
-3/7
)
(
-8
5
)
(iv)
(
-3/7
)
(
4
3
)
✕
(
-3/7
)
(
-4
5
)
(v)
(
-3/7
)
(
4
3
)
✕
(
-3/7
)
(
-6
5
)
Question
18
18.
-2
(
1
3
)
+
-4
(
1
4
)
=
(i)
263
(ii)
265
(iii)
264
(iv)
268
(v)
266
Question
19
19.
9
(
-4
7
)
=
(i)
(-4)
8
7
9
(ii)
(-4)
9
10
9
(iii)
(-4)
9
7
9
(iv)
(-4)
9
5
9
(v)
(-4)
10
7
9
Question
20
20.
(
9
8
✕
3
2
)
6
=
(i)
9
8
✕
3
2
(ii)
9
12
✕
3
48
(iii)
9
48
✕
3
12
(iv)
9
8
✕
3
12
(v)
9
48
✕
3
2
Question
21
21.
Simplify the expression
-5
(
5
3
)
✕
-5
(
5
3
)
✕
-3
(
5
3
)
(i)
-12
(
5
3
)
(ii)
-13
(
5
3
)
(iii)
-14
(
5
3
)
(iv)
-13
(
7
3
)
(v)
1
Question
22
22.
(-5)
4
(-5)
4
=
(i)
(-5)
3
(ii)
(-5)
-1
(iii)
1
(iv)
(-5)
-2
(v)
-5
Question
23
23.
Simplify the expression
3
(
7
3
)
✕
3
(
7
3
)
✕
2
(
7
3
)
(i)
7
(
7
3
)
(ii)
9
(
7
3
)
(iii)
8
(
7
3
)
(iv)
8
(
5
3
)
(v)
3
8
Question
24
24.
Simplify
(-4)
2
✕
2
2
(-2)
-2
✕
(-4)
-2
(i)
2
13
(ii)
2
9
(iii)
2
12
(iv)
2
11
(v)
5
12
Question
25
25.
Simplify the expression
7
-4
✕
7
-6
(i)
7
-9
(ii)
7
-10
(iii)
4
-10
(iv)
10
-10
(v)
7
-11
Assignment Key
1) (i)
2) (ii)
3) (iii)
4) (iv)
5) (v)
6) (iv)
7) (i)
8) (i)
9) (ii)
10) (ii)
11) (iii)
12) (iii)
13) (i)
14) (i)
15) (iv)
16) (i)
17) (v)
18) (ii)
19) (iii)
20) (iii)
21) (ii)
22) (iii)
23) (iii)
24) (iii)
25) (ii)
