EduSahara™ Assignment
Name : Cubes and Cube Roots
Chapter : Square Root and Cube Root
Grade : ICSE Grade VIII
License : Non Commercial Use
Question
1
1.
Find the cube root of
10648
(i)
487
(ii)
25
(iii)
19
(iv)
484
(v)
22
Question
2
2.
Find the cube of
30
(i)
26997
(ii)
27003
(iii)
900
(iv)
903
(v)
27000
Question
3
3.
Find the value of
6
3
−
5
3
(i)
91
(ii)
92
(iii)
90
(iv)
94
(v)
88
Question
4
4.
Find the value of
26
3
+
25
3
(i)
33200
(ii)
33201
(iii)
33202
(iv)
33198
(v)
33204
Question
5
5.
Which of the following is a perfect cube?
(i)
126
(ii)
1000
(iii)
511
(iv)
25
(v)
66
Question
6
6.
Which of the following is not a perfect cube?
(i)
1000
(ii)
30
(iii)
8
(iv)
125
(v)
729
Question
7
7.
The smallest number by which 2048 must be multiplied so that the product is a perfect cube is?
(i)
2
(ii)
4
(iii)
1
(iv)
3
(v)
0
Question
8
8.
The smallest number by which 648 must be divided so that the quotient is a perfect cube is?
(i)
1
(ii)
0
(iii)
3
(iv)
4
(v)
2
Question
9
9.
Find the
cube root
of
-27
(i)
-4
(ii)
-1
(iii)
-3
(iv)
-2
(v)
-5
Question
10
10.
Find the
cube root
of
(
-1
8
)
(i)
(
-1
2
)
(ii)
1
2
(iii)
-1
(iv)
(
-1
4
)
(v)
(
-3
2
)
Question
11
11.
Find the cube root of
19683
(i)
729
(ii)
27
(iii)
732
(iv)
24
(v)
30
Question
12
12.
Find the cube of
17
(i)
292
(ii)
4913
(iii)
289
(iv)
4910
(v)
4916
Question
13
13.
Which of the following is a perfect cube?
(i)
997
(ii)
26
(iii)
730
(iv)
8
(v)
514
Question
14
14.
Which of the following is not a perfect cube?
(i)
216
(ii)
128
(iii)
64
(iv)
729
(v)
1000
Question
15
15.
The smallest number by which 72 must be multiplied so that the product is a perfect cube is?
(i)
1
(ii)
3
(iii)
0
(iv)
4
(v)
2
Question
16
16.
The smallest number by which 1024 must be divided so that the quotient is a perfect cube is?
(i)
0
(ii)
4
(iii)
3
(iv)
2
(v)
1
Question
17
17.
Find the
cube root
of
125
(i)
4
(ii)
5
(iii)
3
(iv)
8
(v)
6
Question
18
18.
Find the
cube root
of
(
-125
8
)
(i)
(
-3
2
)
(ii)
-5
(iii)
(
-7
2
)
(iv)
(
-5
4
)
(v)
(
-5
2
)
Assignment Key
1) (v)
2) (v)
3) (i)
4) (ii)
5) (ii)
6) (ii)
7) (i)
8) (iii)
9) (iii)
10) (i)
11) (ii)
12) (ii)
13) (iv)
14) (ii)
15) (ii)
16) (iv)
17) (ii)
18) (v)
