EduSahara™ Assignment
Name : Squares and Square Roots
Chapter : Square Root and Cube Root
Grade : ICSE Grade VIII
License : Non Commercial Use
Question
1
1.
Which of the following is a perfect square?
(i)
1680
(ii)
49
(iii)
530
(iv)
1228
(v)
439
Question
2
2.
Which of the following is not a perfect square?
(i)
1681
(ii)
1368
(iii)
121
(iv)
49
(v)
144
Question
3
3.
What is the unit place digit in the square of 34?
(i)
1
(ii)
6
(iii)
3
(iv)
8
(v)
7
Question
4
4.
Find the number of numbers between
8
2
and
9
2
(i)
19
(ii)
15
(iii)
13
(iv)
17
(v)
16
Question
5
5.
Find the smallest perfect square which is divisible by each of the numbers 14,6,12
(i)
1176
(ii)
3528
(iii)
1766
(iv)
1764
(v)
505
Question
6
6.
How many digits are there in the square root of 1849?
(i)
1
(ii)
2
(iii)
0
(iv)
3
(v)
5
Question
7
7.
How many digits are there in the square root of 45369?
(i)
2
(ii)
0
(iii)
3
(iv)
6
(v)
4
Question
8
8.
Find the least number that must be subtracted from 102 to get a perfect square?
(i)
5
(ii)
2
(iii)
1
(iv)
3
(v)
0
Question
9
9.
Find the least number that must be added to 1057 to get a perfect square?
(i)
31
(ii)
35
(iii)
32
(iv)
33
(v)
29
Question
10
10.
Find the smallest 2 digit number which is a perfect square?
(i)
15
(ii)
18
(iii)
17
(iv)
14
(v)
16
Question
11
11.
Find the greatest 2 digit number which is a perfect square?
(i)
80
(ii)
82
(iii)
78
(iv)
83
(v)
81
Question
12
12.
Find the smallest 3 digit number which is a perfect square?
(i)
102
(ii)
99
(iii)
101
(iv)
97
(v)
100
Question
13
13.
Find the greatest 3 digit number which is a perfect square?
(i)
961
(ii)
963
(iii)
960
(iv)
959
(v)
962
Question
14
14.
Find the smallest 4 digit number which is a perfect square?
(i)
1021
(ii)
1025
(iii)
1023
(iv)
1024
(v)
1027
Question
15
15.
Find the greatest 4 digit number which is a perfect square?
(i)
9801
(ii)
9802
(iii)
9799
(iv)
9803
(v)
9800
Question
16
16.
Find the smallest 5 digit number which is a perfect square?
(i)
10003
(ii)
9999
(iii)
9997
(iv)
10001
(v)
10000
Question
17
17.
Find the greatest 5 digit number which is a perfect square?
(i)
99856
(ii)
99853
(iii)
99858
(iv)
99857
(v)
99855
Question
18
18.
The smallest number by which 125 must be multiplied so that the product is a perfect square is?
(i)
4
(ii)
7
(iii)
5
(iv)
6
(v)
2
Question
19
19.
The smallest number by which 968 must be divided so that the quotient is a perfect square is?
(i)
3
(ii)
4
(iii)
2
(iv)
(-1)
(v)
1
Question
20
20.
If a number has 4 zeros at the end, its square has how many zeros?
(i)
7
(ii)
5
(iii)
8
(iv)
9
(v)
11
Question
21
21.
Find the
square root
of
9
(i)
1
(ii)
5
(iii)
2
(iv)
4
(v)
3
Question
22
22.
Find the
square root
of
16
9
(i)
2
3
(ii)
2
(iii)
4
3
(iv)
6
5
Assignment Key
1) (ii)
2) (ii)
3) (ii)
4) (v)
5) (iv)
6) (ii)
7) (iii)
8) (ii)
9) (iii)
10) (v)
11) (v)
12) (v)
13) (i)
14) (iv)
15) (i)
16) (v)
17) (i)
18) (iii)
19) (iii)
20) (iii)
21) (v)
22) (iii)
