EduSahara™ Worksheet

Question 1

1.

The solution of
√

13
lies between

(i)

3 and 4
(ii)

4 and 5
(iii)

2 and 3
(iv)

5 and 6
(v)

1 and 2

Question 2

2.

Find the greatest 5 digit number which is a perfect square?

(i)

99855
(ii)

99853
(iii)

99859
(iv)

99857
(v)

99856

Question 3

3.

Find the least number that must be added to 1219 to get a perfect square?

(i)

7
(ii)

3
(iii)

6
(iv)

5
(v)

9

Question 4

4.

Find the greatest 2 digit number which is a perfect square?

(i)

81
(ii)

78
(iii)

84
(iv)

80
(v)

82

Question 5

5.

Find the
square root
of
16

(i)

4
(ii)

1
(iii)

5
(iv)

3
(v)

6

Question 6

6.

Identify the Pythagorean triplet whose smallest number is 18

(i)

{18,80,82}
(ii)

{18,81,84}
(iii)

{18,81,83}
(iv)

{18,82,84}
(v)

{18,82,83}

Question 7

7.

The solution of
√

15
lies between

(i)

3.85 and 3.86
(ii)

3.86 and 3.87
(iii)

3.88 and 3.89
(iv)

3.87 and 3.88
(v)

3.89 and 3.90

Question 8

8.

Identify the Pythagorean triplet whose middle number is 24

(i)

{11,24,23}
(ii)

{12,24,26}
(iii)

{11,24,25}
(iv)

{9,24,25}
(v)

{10,24,26}

Question 9

9.

Express
9 2
as the sum of two consecutive integers

(i)

42 + 39
(ii)

38 + 43
(iii)

41 + 42
(iv)

40 + 41
(v)

39 + 40

Question 10

10.

(i)

80000
(ii)

7998
(iii)

800
(iv)

8000
(v)

8002

Question 11

11.

Identify the Pythagorean triplet whose one of the numbers is 12

(i)

{12,37,38}
(ii)

{12,36,39}
(iii)

{12,35,37}
(iv)

{12,36,38}
(v)

{12,37,39}

Question 12

12.

Find the smallest 5 digit number which is a perfect square?

(i)

10001
(ii)

10002
(iii)

9997
(iv)

9999
(v)

10000

Question 13

13.

Identify the Pythagorean triplet whose largest number is 17

(i)

{9,14,17}
(ii)

{7,16,17}
(iii)

{6,13,17}
(iv)

{8,15,17}
(v)

{10,16,17}

Question 14

14.

Find the
square root
of
16
9

(i)

4
3
(ii)

4
(iii)

2
3
(iv)

4
5
(v)

2

Question 15

15.

The smallest number by which 50 must be multiplied so that the product is a perfect square is?

(i)

4
(ii)

3
(iii)

2
(iv)

1
(v)

(-1)

Question 16

16.

The solution of
√

6
lies between

(i)

2.450 and 2.451
(ii)

2.451 and 2.452
(iii)

2.449 and 2.450
(iv)

2.448 and 2.449
(v)

2.447 and 2.448

Question 17

17.

Find the smallest 3 digit number which is a perfect square?

(i)

97
(ii)

102
(iii)

100
(iv)

101
(v)

99

Question 18

18.

Which of the following is not a perfect square?

(i)

676
(ii)

900
(iii)

1024
(iv)

223
(v)

729

Question 19

19.

Find the greatest 4 digit number which is a perfect square?

(i)

9803
(ii)

9800
(iii)

9802
(iv)

9798
(v)

9801

Question 20

20.

If a number has 5 zeros at the end, its square has how many zeros?

(i)

11
(ii)

10
(iii)

8
(iv)

9
(v)

12

Question 21

21.

The solution of
√

19
lies between

(i)

4.3 and 4.4
(ii)

4.2 and 4.3
(iii)

4.1 and 4.2
(iv)

4.4 and 4.5
(v)

4.5 and 4.6

Question 22

22.

Find the least number that must be subtracted from 200 to get a perfect square?

(i)

6
(ii)

4
(iii)

5
(iv)

1
(v)

3

Question 23

23.

Find the smallest perfect square which is divisible by each of the numbers 12,16,15

(i)

3602
(ii)

3841
(iii)

7200
(iv)

2880
(v)

3600

Question 24

24.

Which of the following is a perfect square?

(i)

287
(ii)

1599
(iii)

486
(iv)

1157
(v)

1764

Question 25

25.

The smallest number by which 1728 must be divided so that the quotient is a perfect square is?

(i)

2
(ii)

4
(iii)

3
(iv)

5
(v)

1

Assignment Key