EduSahara™ Worksheet

Question 1

1.

Estimate the number 669172523 to the nearest crores by rounding off

(i)

67000000
(ii)

(-1889934592)
(iii)

680000000
(iv)

670000000
(v)

660000000

Question 2

2.

Sort the following numbers in ascending order

45 43 7 4 9 27

(i)

43 9 4 7 45 27
(ii)

4 7 9 27 43 45
(iii)

4 43 45 7 9 27
(iv)

27 45 43 4 7 9
(v)

43 9 27 7 4 45

Question 3

3.

Write the Roman number for the given number : 255

(i)

CCLIV
(ii)

CCLVI
(iii)

CCLVII
(iv)

CCLV
(v)

CCLIII

Question 4

4.

2000 + 200 + 40 + 7
=

(i)

-7753
(ii)

3247
(iii)

2247
(iv)

2147
(v)

2347

Question 5

5.

Estimate the value of 9335 ✕ 1931 to the nearest thousands by rounding off ?

(i)

180000
(ii)

1800000
(iii)

180000000
(iv)

1800000000
(v)

18000000

Question 6

6.

Estimate the number 5951 to the nearest thousands by rounding off

(i)

6000
(ii)

5000
(iii)

60000
(iv)

600
(v)

7000

Question 7

7.

Write the number for the given expanded form :

"(4 ✕ 100000) + (1 ✕ 10000) + (9 ✕ 1000) + (1 ✕ 100) + (5 ✕ 10) + (3 ✕ 1)"

(i)

419,253
(ii)

419,143
(iii)

418,153
(iv)

419,153
(v)

420,153

Question 8

8.

50000 + 8000 + 800 + 70 + 6
=

(i)

48,876
(ii)

58,886
(iii)

58,876
(iv)

57,876
(v)

68,876

Question 9

9.

Estimate the value of 1026 − 398 to the nearest hundreds by rounding off ?

(i)

60
(ii)

600
(iii)

60000
(iv)

6000
(v)

6

Question 10

10.

(47 + 23) ✕ (40 + 46) =

(i)

6022
(ii)

6017
(iii)

6019
(iv)

6021
(v)

6020

Question 11

11.

Write the smallest 6 digit number that can be formed with the digits : {8,7,2,5}

(i)

5,82,227
(ii)

7,22,285
(iii)

2,22,578
(iv)

2,82,752
(v)

5,27,822

Question 12

12.

38,257
=

(i)

30000
+
8000
+
50
+
7
(ii)

30000
+
200
+
50
+
7
(iii)

30000
+
8000
+
200
+
7
(iv)

30000
+
8000
+
200
+
50
+
7
(v)

8000
+
200
+
50
+
7

Question 13

13.

What is the difference between the largest and smallest number formed with the digits : 1,8,3,6 ?

(i)

7,265
(ii)

7,262
(iii)

7,264
(iv)

7,260
(v)

7,263

Question 14

14.

8,437
=

(i)

400
+
30
+
7
(ii)

8000
+
400
+
30
+
7
(iii)

8000
+
400
+
7
(iv)

8000
+
30
+
7
(v)

8000
+
400
+
30

Question 15

15.

Find the smallest number in the list :
12 20 48 11 25 16 39 19 29 21

(i)

19
(ii)

48
(iii)

25
(iv)

29
(v)

11

Question 16

16.

What is the difference between the largest and smallest number formed with the digits : 4,6,3,2 ?

(i)

4086
(ii)

4088
(iii)

4084
(iv)

4087
(v)

4085

Question 17

17.

Write the number for the given figures - sixty nine million three hundred and ninety one thousand five hundred and seventy one

(i)

69,392,571
(ii)

69,391,561
(iii)

69,391,671
(iv)

69,390,571
(v)

69,391,571

Question 18

18.

Find the place value of 7 in 561743

(i)

70000
(ii)

7000
(iii)

7
(iv)

70
(v)

700

Question 19

19.

400000 + 80000 + 5000 + 300 + 10 + 9
=

(i)

4,85,329
(ii)

4,75,319
(iii)

4,84,319
(iv)

4,85,319
(v)

4,86,319

Question 20

20.

Estimate the number 49315 to the nearest ten thousands by rounding off

(i)

500000
(ii)

50000
(iii)

60000
(iv)

5000
(v)

40000

Question 21

21.

What is the largest number that can be formed with the digits :
2,0,3,4,5
?

(i)

54320
(ii)

34250
(iii)

40532
(iv)

40253
(v)

54230

Question 22

22.

Write the largest 5 digit number that can be formed with the digits : {6,1,7}

(i)

76,177
(ii)

67,717
(iii)

71,767
(iv)

67,771
(v)

77,761

Question 23

23.

Write the number for the given expanded form :

"(7 ✕ 100000) + (4 ✕ 10000) + (5 ✕ 1000) + (3 ✕ 100) + (9 ✕ 10) + (1 ✕ 1)"

(i)

7,45,291
(ii)

7,45,391
(iii)

7,45,401
(iv)

7,44,391
(v)

7,46,391

Question 24

24.

(38 − 41) − (11 − 34) =

(i)

21
(ii)

20
(iii)

22
(iv)

19
(v)

17

Question 25

25.

Estimate the value of 9967 − 7717 to the nearest thousands by rounding off ?

(i)

2000
(ii)

200000
(iii)

20
(iv)

200
(v)

20000

Assignment Key