EduSahara™ Worksheet

Question 1

1.

Write the expanded form of the given number :
220664

(i)

(2 ✕ 100000) + (2 ✕ 10000) + (6 ✕ 100) + (6 ✕ 10) + (4 ✕ 1)
(ii)

(2 ✕ 100000) + (2 ✕ 10000) + (6 ✕ 100) + (7 ✕ 10) + (4 ✕ 1)
(iii)

(2 ✕ 100000) + (2 ✕ 10000) + (6 ✕ 100) + (5 ✕ 10) + (4 ✕ 1)
(iv)

(2 ✕ 100000) + (2 ✕ 10000) + (1 ✕ 1000) + (6 ✕ 100) + (6 ✕ 10) + (4 ✕ 1)
(v)

(2 ✕ 100000) + (1 ✕ 10000) + (6 ✕ 100) + (6 ✕ 10) + (4 ✕ 1)

Question 2

2.

Which of the following numbers is divisible by 11?

(i)

2,452
(ii)

2,455
(iii)

2,454
(iv)

2,451
(v)

2,453

Question 3

3.

Find the prime factorization of
4500

(i)

2 3

✕

3 2

✕

5 3
(ii)

(-1) 2

✕

3 2

✕

5 3
(iii)

2 2

✕

3 2

✕

5 2
(iv)

2 2

✕

3 2

✕

8 3
(v)

2 2

✕

3 2

✕

5 3

Question 4

4.

20000 + 1000 + 600 + 20 + 5
=

(i)

20625
(ii)

21725
(iii)

21525
(iv)

21635
(v)

21625

Question 5

5.

2000000 + 800000 + 30000 + 2000 + 300 + 20 + 7
=

(i)

2,822,327
(ii)

2,832,327
(iii)

2,832,317
(iv)

2,842,327
(v)

2,832,427

Question 6

6.

Find the number of prime factors of
57

(i)

1
(ii)

0
(iii)

2
(iv)

4
(v)

3

Question 7

7.

100000 + 30000 + 3000 + 700 + 70 + 2
=

(i)

132,772
(ii)

133,772
(iii)

123,772
(iv)

133,872
(v)

134,772

Question 8

8.

Find the place value of 7 in 487,269

(i)

700,000
(ii)

7,000
(iii)

700
(iv)

70,000
(v)

70

Question 9

9.

Write the number for the given expanded form :

"(2 ✕ 100000) + (2 ✕ 10000) + (3 ✕ 1000) + (8 ✕ 100) + (3 ✕ 10) + (4 ✕ 1)"

(i)

223,834
(ii)

223,844
(iii)

223,734
(iv)

223,934
(v)

213,834

Question 10

10.

Which of the following numbers is divisible by 11?

(i)

8,161
(ii)

8,160
(iii)

8,164
(iv)

8,162
(v)

8,163

Question 11

11.

565
=

(i)

500
+
60
(ii)

500
+
60
+
5
(iii)

60
+
5
(iv)

500
+
5

Question 12

12.

Which of the following numbers is divisible by 10?

(i)

4,042
(ii)

4,040
(iii)

4,038
(iv)

4,041
(v)

4,039

Question 13

13.

Find the place value of 4 in 842135

(i)

400000
(ii)

40000
(iii)

4000000
(iv)

400
(v)

4000

Question 14

14.

Which of the following numbers is divisible by 3?

(i)

6,454
(ii)

6,456
(iii)

6,455
(iv)

6,458
(v)

6,457

Question 15

15.

50000 + 3000 + 900 + 80 + 3
=

(i)

43,983
(ii)

54,983
(iii)

53,983
(iv)

53,973
(v)

53,993

Question 16

16.

Find the number of prime factors of
126

(i)

0
(ii)

4
(iii)

3
(iv)

2
(v)

1

Question 17

17.

The factors of 36 =

(i)

{1,2,3,4,6,9,12,18,36,5,35}
(ii)

{1,2,3,4,6,12,18,36}
(iii)

{1,2,3,4,6,9,12,18,36,13}
(iv)

{1,2,3,4,6,9,12,18,36}
(v)

{1,2,3,4,9,12,36,17,5}

Question 18

18.

Which of the following numbers is divisible by 8?

(i)

2,271
(ii)

2,270
(iii)

2,274
(iv)

2,273
(v)

2,272

Question 19

19.

51,686
=

(i)

1000
+
600
+
80
+
6
(ii)

50000
+
1000
+
600
+
6
(iii)

50000
+
1000
+
600
+
80
+
6
(iv)

50000
+
600
+
80
+
6
(v)

50000
+
1000
+
80
+
6

Question 20

20.

6000 + 600 + 70 + 7
=

(i)

16677
(ii)

6667
(iii)

6677
(iv)

6687
(v)

5677

Question 21

21.

The sum of first n natural number is

(i)

(

n

) (

n

−

1

)

2
(ii)

(

n

−

1

) (

n

+

1

)

2
(iii)

n

2

(

n

+

1

)

2

4
(iv)

(

n

) (

n

+

1

)

2
(v)

(

n

) (

n

+

1

) (

2

n

+

1

)

6

Question 22

22.

Which of the following numbers is divisible by 7?

(i)

9,590
(ii)

9,588
(iii)

9,589
(iv)

9,591
(v)

9,592

Question 23

23.

Write the number for the given expanded form :

"(2 ✕ 100000) + (9 ✕ 10000) + (6 ✕ 1000) + (9 ✕ 100) + (5 ✕ 10) + (9 ✕ 1)"

(i)

3,06,959
(ii)

2,95,959
(iii)

2,96,949
(iv)

2,96,969
(v)

2,96,959

Question 24

24.

The factors of 91 =

(i)

{1,7,13,91,6,2}
(ii)

{1,7,13,91,2}
(iii)

{7,13,6,14}
(iv)

{1,7,13,91}
(v)

{1,13,91,14}

Question 25

25.

The factors of 38 =

(i)

{2,19,38,37}
(ii)

{1,2,19,38,20,37}
(iii)

{19,38,1,2}
(iv)

{1,2,19,38}

Assignment Key