Number System Worksheet for Class 6

Number System Worksheet for Class 6 – Practice Questions with Answers

The number system is an important part of Class 6 mathematics. It helps students understand different types of numbers, place values, and how numbers are used in daily life. This worksheet provides a variety of questions to practice and strengthen concepts.


Section A: Fill in the Blanks

  1. The smallest whole number is ______.
  2. The successor of 999 is ______.
  3. The predecessor of 1000 is ______.
  4. The place value of 5 in 5,432 is ______.
  5. The greatest 3-digit number is ______.

Section B: Write in Words

  1. 4,532 = __________
  2. 10,205 = __________
  3. 99,999 = __________
  4. 7,040 = __________
  5. 85,619 = __________

Section C: Write in Numbers

  1. Six thousand four hundred twenty = ______
  2. Nine thousand nine = ______
  3. Fifty thousand one hundred = ______
  4. Eighty-seven thousand six hundred = ______
  5. One lakh twenty thousand = ______

Section D: Compare the Numbers (>, <, =)

  1. 456 ___ 465
  2. 1,234 ___ 1,243
  3. 9,999 ___ 10,000
  4. 5,678 ___ 5,678
  5. 7,890 ___ 7,809

Section E: Arrange in Ascending Order

  1. 456, 123, 789, 234
  2. 1,200, 1,050, 1,500, 1,100
  3. 9,876, 9,786, 9,678, 9,867
  4. 5,432, 5,123, 5,321, 5,213
  5. 10,001, 9,999, 10,010, 10,000

Section F: Arrange in Descending Order

  1. 345, 567, 123, 789
  2. 2,100, 2,050, 2,500, 2,200
  3. 8,765, 8,567, 8,675, 8,756
  4. 6,432, 6,123, 6,321, 6,213
  5. 11,001, 10,999, 11,010, 11,000

Section G: Expanded Form

  1. 4,532 = ______
  2. 10,205 = ______
  3. 7,894 = ______
  4. 65,321 = ______
  5. 1,23,456 = ______

Section H: Short Answer Questions

  1. What is the difference between place value and face value?
  2. Write the greatest 4-digit number.
  3. Write the smallest 5-digit number.
  4. What comes just before 10,000?
  5. What comes just after 99,999?

Answer Key

Section A:

  1. 0
  2. 1000
  3. 999
  4. 5000
  5. 999

Section B:
6. Four thousand five hundred thirty-two
7. Ten thousand two hundred five
8. Ninety-nine thousand nine hundred ninety-nine
9. Seven thousand forty
10. Eighty-five thousand six hundred nineteen

Section C:
11. 6,420
12. 9,009
13. 50,100
14. 87,600
15. 1,20,000

Section D:
16. <
17. <
18. <
19. =
20. >

Section E:
21. 123, 234, 456, 789
22. 1,050, 1,100, 1,200, 1,500
23. 9,678, 9,786, 9,867, 9,876
24. 5,123, 5,213, 5,321, 5,432
25. 9,999, 10,000, 10,001, 10,010

Section F:
26. 789, 567, 345, 123
27. 2,500, 2,200, 2,100, 2,050
28. 8,765, 8,756, 8,675, 8,567
29. 6,432, 6,321, 6,213, 6,123
30. 11,010, 11,001, 11,000, 10,999

Section G:
31. 4000 + 500 + 30 + 2
32. 10000 + 200 + 5
33. 7000 + 800 + 90 + 4
34. 60000 + 5000 + 300 + 20 + 1
35. 1,00,000 + 20,000 + 3,000 + 400 + 50 + 6

Section H:
36. Place value shows the position of a digit, face value is the digit itself.
37. 9,999
38. 10,000
39. 9,999
40. 1,00,000


This worksheet helps students build a strong understanding of the number system through practice and revision.