EduSahara™ Assignment
Name : Squares and Square Roots
Chapter : Square Roots and Cube Roots
Grade : SSC Grade VIII
License : Non Commercial Use
Question
1
1.
Which of the following is a perfect square?
(i)
9
(ii)
323
(iii)
290
(iv)
2404
(v)
1598
Question
2
2.
Which of the following is not a perfect square?
(i)
1086
(ii)
1681
(iii)
196
(iv)
1764
(v)
1444
Question
3
3.
Find the number of numbers between
7
2
and
8
2
(i)
13
(ii)
12
(iii)
16
(iv)
14
(v)
15
Question
4
4.
Find the smallest perfect square which is divisible by each of the numbers 6,4,18
(i)
72
(ii)
145
(iii)
216
(iv)
38
(v)
36
Question
5
5.
How many digits are there in the square root of 2116?
(i)
(-1)
(ii)
3
(iii)
2
(iv)
1
(v)
4
Question
6
6.
How many digits are there in the square root of 302500?
(i)
2
(ii)
3
(iii)
1
(iv)
4
(v)
6
Question
7
7.
Find the least number that must be subtracted from 156 to get a perfect square?
(i)
9
(ii)
15
(iii)
12
(iv)
11
(v)
13
Question
8
8.
Find the least number that must be added to 664 to get a perfect square?
(i)
9
(ii)
12
(iii)
14
(iv)
13
(v)
11
Question
9
9.
Find the smallest 2 digit number which is a perfect square?
(i)
16
(ii)
17
(iii)
14
(iv)
15
(v)
19
Question
10
10.
Find the greatest 2 digit number which is a perfect square?
(i)
78
(ii)
84
(iii)
81
(iv)
80
(v)
82
Question
11
11.
Find the smallest 3 digit number which is a perfect square?
(i)
101
(ii)
98
(iii)
103
(iv)
99
(v)
100
Question
12
12.
Find the greatest 3 digit number which is a perfect square?
(i)
961
(ii)
963
(iii)
958
(iv)
962
(v)
960
Question
13
13.
Find the smallest 4 digit number which is a perfect square?
(i)
1025
(ii)
1024
(iii)
1023
(iv)
1021
(v)
1026
Question
14
14.
Find the greatest 4 digit number which is a perfect square?
(i)
9804
(ii)
9799
(iii)
9800
(iv)
9802
(v)
9801
Question
15
15.
Find the smallest 5 digit number which is a perfect square?
(i)
10003
(ii)
9999
(iii)
9998
(iv)
10001
(v)
10000
Question
16
16.
Find the greatest 5 digit number which is a perfect square?
(i)
99854
(ii)
99856
(iii)
99855
(iv)
99859
(v)
99857
Question
17
17.
Express
13
2
as the sum of two consecutive integers
(i)
82 + 87
(ii)
85 + 86
(iii)
83 + 84
(iv)
86 + 83
(v)
84 + 85
Question
18
18.
The smallest number by which 363 must be multiplied so that the product is a perfect square is?
(i)
4
(ii)
3
(iii)
2
(iv)
0
(v)
6
Question
19
19.
The smallest number by which 128 must be divided so that the quotient is a perfect square is?
(i)
1
(ii)
5
(iii)
3
(iv)
2
(v)
0
Question
20
20.
What is the unit place digit in the square of 1?
(i)
9
(ii)
8
(iii)
6
(iv)
1
(v)
7
Question
21
21.
If a number has 3 zeros at the end, its square has how many zeros?
(i)
4
(ii)
5
(iii)
6
(iv)
7
(v)
8
Question
22
22.
Find the
square root
of
16
(i)
5
(ii)
2
(iii)
3
(iv)
4
(v)
6
Question
23
23.
Find the
square root
of
1
16
(i)
(
-1
4
)
(ii)
1
2
(iii)
1
4
(iv)
1
6
(v)
3
4
Question
24
24.
If
√
1296
=
36
,
find the value of
√
12960000
(i)
3600
(ii)
3602
(iii)
360
(iv)
36000
(v)
3598
Question
25
25.
If
√
1600
=
40
,
find the value of
√
160000
(i)
400
(ii)
402
(iii)
4000
(iv)
398
(v)
40
Question
26
26.
If
√
5929
=
77
,
find the value of
√
59.29
(i)
5.7
(ii)
77
(iii)
0.8
(iv)
7.7
(v)
9.7
Question
27
27.
If
√
2401
=
49
,
find the value of
√
0.2401
(i)
8.49
(ii)
2.49
(iii)
0.49
(iv)
0.05
(v)
4.9
Assignment Key
1) (i)
2) (i)
3) (iv)
4) (v)
5) (iii)
6) (ii)
7) (iii)
8) (ii)
9) (i)
10) (iii)
11) (v)
12) (i)
13) (ii)
14) (v)
15) (v)
16) (ii)
17) (v)
18) (ii)
19) (iv)
20) (iv)
21) (iii)
22) (iv)
23) (iii)
24) (i)
25) (i)
26) (iv)
27) (iii)
