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)
1520
(ii)
146
(iii)
1600
(iv)
362
(v)
2022
Question
2
2.
Which of the following is not a perfect square?
(i)
36
(ii)
2
(iii)
484
(iv)
900
(v)
2401
Question
3
3.
What is the unit place digit in the square of 19?
(i)
0
(ii)
2
(iii)
9
(iv)
1
(v)
4
Question
4
4.
Find the number of numbers between
3
2
and
4
2
(i)
5
(ii)
7
(iii)
3
(iv)
6
(v)
9
Question
5
5.
Find the smallest perfect square which is divisible by each of the numbers 9,16,6
(i)
288
(ii)
2305
(iii)
146
(iv)
1296
(v)
144
Question
6
6.
How many digits are there in the square root of 7744?
(i)
(-1)
(ii)
3
(iii)
5
(iv)
1
(v)
2
Question
7
7.
How many digits are there in the square root of 861184?
(i)
3
(ii)
1
(iii)
2
(iv)
4
(v)
5
Question
8
8.
Find the least number that must be subtracted from 1102 to get a perfect square?
(i)
14
(ii)
11
(iii)
13
(iv)
12
(v)
16
Question
9
9.
Find the least number that must be added to 477 to get a perfect square?
(i)
4
(ii)
6
(iii)
8
(iv)
10
(v)
7
Question
10
10.
Find the smallest 2 digit number which is a perfect square?
(i)
19
(ii)
17
(iii)
16
(iv)
15
(v)
13
Question
11
11.
Find the greatest 2 digit number which is a perfect square?
(i)
80
(ii)
82
(iii)
81
(iv)
83
(v)
79
Question
12
12.
Find the smallest 3 digit number which is a perfect square?
(i)
101
(ii)
99
(iii)
103
(iv)
100
(v)
97
Question
13
13.
Find the greatest 3 digit number which is a perfect square?
(i)
960
(ii)
962
(iii)
958
(iv)
963
(v)
961
Question
14
14.
Find the smallest 4 digit number which is a perfect square?
(i)
1025
(ii)
1027
(iii)
1021
(iv)
1023
(v)
1024
Question
15
15.
Find the greatest 4 digit number which is a perfect square?
(i)
9800
(ii)
9803
(iii)
9802
(iv)
9798
(v)
9801
Question
16
16.
Find the smallest 5 digit number which is a perfect square?
(i)
10000
(ii)
10001
(iii)
9997
(iv)
9999
(v)
10002
Question
17
17.
Find the greatest 5 digit number which is a perfect square?
(i)
99859
(ii)
99857
(iii)
99855
(iv)
99856
(v)
99854
Question
18
18.
The smallest number by which 300 must be multiplied so that the product is a perfect square is?
(i)
3
(ii)
4
(iii)
2
(iv)
1
(v)
6
Question
19
19.
The smallest number by which 512 must be divided so that the quotient is a perfect square is?
(i)
3
(ii)
2
(iii)
1
(iv)
5
(v)
(-1)
Question
20
20.
If a number has 4 zeros at the end, its square has how many zeros?
(i)
9
(ii)
10
(iii)
7
(iv)
6
(v)
8
Question
21
21.
Find the
square root
of
16
(i)
4
(ii)
2
(iii)
5
(iv)
7
(v)
3
Question
22
22.
Find the
square root
of
25
4
(i)
7
2
(ii)
5
2
(iii)
9
4
(iv)
3
(v)
3
2
Assignment Key
1) (iii)
2) (ii)
3) (iv)
4) (iv)
5) (v)
6) (v)
7) (i)
8) (iii)
9) (v)
10) (iii)
11) (iii)
12) (iv)
13) (v)
14) (v)
15) (v)
16) (i)
17) (iv)
18) (i)
19) (ii)
20) (v)
21) (i)
22) (ii)
