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
1331
(i)
11
(ii)
14
(iii)
124
(iv)
8
(v)
121
Question
2
2.
Find the cube of
29
(i)
24389
(ii)
24386
(iii)
844
(iv)
841
(v)
24392
Question
3
3.
Find the value of
8
3
−
7
3
(i)
169
(ii)
166
(iii)
170
(iv)
168
(v)
172
Question
4
4.
Find the value of
27
3
+
26
3
(i)
37260
(ii)
37262
(iii)
37257
(iv)
37259
(v)
37258
Question
5
5.
Which of the following is a perfect cube?
(i)
726
(ii)
346
(iii)
8
(iv)
215
(v)
28
Question
6
6.
Which of the following is not a perfect cube?
(i)
64
(ii)
512
(iii)
216
(iv)
125
(v)
11
Question
7
7.
The smallest number by which 1125 must be multiplied so that the product is a perfect cube is?
(i)
4
(ii)
1
(iii)
2
(iv)
0
(v)
3
Question
8
8.
The smallest number by which 5488 must be divided so that the quotient is a perfect cube is?
(i)
3
(ii)
0
(iii)
1
(iv)
2
(v)
4
Question
9
9.
Find the
cube root
of
-8
(i)
0
(ii)
-1
(iii)
-3
(iv)
-5
(v)
-2
Question
10
10.
Find the
cube root
of
(
-27
125
)
(i)
(
-1
5
)
(ii)
(
-3
5
)
(iii)
(
-3
7
)
(iv)
-1
Question
11
11.
Find the cube root of
2197
(i)
10
(ii)
13
(iii)
16
(iv)
172
(v)
169
Question
12
12.
Find the cube of
20
(i)
7997
(ii)
8003
(iii)
403
(iv)
8000
(v)
400
Question
13
13.
Which of the following is a perfect cube?
(i)
346
(ii)
26
(iii)
727
(iv)
125
(v)
217
Question
14
14.
Which of the following is not a perfect cube?
(i)
8
(ii)
64
(iii)
128
(iv)
729
(v)
1000
Question
15
15.
The smallest number by which 256 must be multiplied so that the product is a perfect cube is?
(i)
3
(ii)
2
(iii)
1
(iv)
0
(v)
4
Question
16
16.
The smallest number by which 3456 must be divided so that the quotient is a perfect cube is?
(i)
4
(ii)
2
(iii)
3
(iv)
1
(v)
0
Question
17
17.
Find the
cube root
of
64
(i)
4
(ii)
6
(iii)
2
(iv)
3
(v)
5
Question
18
18.
Find the
cube root
of
(
-27
125
)
(i)
(
-3
7
)
(ii)
(
-3
5
)
(iii)
(
-1
5
)
(iv)
-1
Assignment Key
1) (i)
2) (i)
3) (i)
4) (iv)
5) (iii)
6) (v)
7) (v)
8) (iv)
9) (v)
10) (ii)
11) (ii)
12) (iv)
13) (iv)
14) (iii)
15) (ii)
16) (ii)
17) (i)
18) (ii)
