6TH MATHS - NATURAL AND WHOLE NUMBERS - BASIC

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Recall the Facts on Natural and Whole Numbers

1. Which is the smallest natural number?

1 0 10 100

Correct Answer: 1

Natural numbers begin from 1 and continue endlessly.

2. Which is the smallest whole number?

1 0 2 5

Correct Answer: 0

Whole numbers start from 0 and include all natural numbers.

3. Which of the following is NOT a natural number?

7 19 100 0

Correct Answer: 0

0 is not a natural number, but it is a whole number.

4. Which number comes after 999?

998 1001 1000 990

Correct Answer: 1000

The successor of a number is obtained by adding 1.

5. What is the predecessor of 500?

499 501 400 550

Correct Answer: 499

The predecessor of a number is obtained by subtracting 1.

6. Which of these is a whole number?

-5 0 1/2 -1

Correct Answer: 0

Whole numbers are 0, 1, 2, 3, and so on.

7. How many whole numbers are there?

10 100 Infinite 50

Correct Answer: Infinite

Whole numbers continue endlessly without stopping.

8. Which number has no predecessor in whole numbers?

1 2 10 0

Correct Answer: 0

0 is the smallest whole number, so it has no predecessor.

9. Successor of 89 is?

90 88 91 99

Correct Answer: 90

89 + 1 = 90

10. Predecessor of 1000 is?

1001 999 998 990

Correct Answer: 999

1000 − 1 = 999

11. Which is greater?

45 67 89 23

Correct Answer: 89

89 is the greatest among the given numbers.

12. Which is the smallest whole number?

1 5 10 0

Correct Answer: 0

Whole numbers begin with 0.

13. Which symbol is correct? 45 ___ 54

< > = +

Correct Answer: <

45 is less than 54.

14. Which number is even?

15 24 37 49

Correct Answer: 24

24 is divisible by 2.

15. Which number is odd?

10 18 21 42

Correct Answer: 21

21 is not divisible by 2.

16. Which number comes before 700?

701 702 710 699

Correct Answer: 699

699 is one less than 700.

17. 0 is a _____ number.

Whole Natural Odd Prime

Correct Answer: Whole

0 belongs to whole numbers only.

18. Which is the largest 2-digit number?

90 99 98 89

Correct Answer: 99

99 is the greatest two-digit number.

19. Which is the smallest 3-digit number?

111 101 100 999

Correct Answer: 100

100 is the first three-digit number.

20. Which number is NOT even?

12 48 60 75

Correct Answer: 75

75 is odd because it is not divisible by 2.

21. Which number is divisible by 2?

36 51 73 95

Correct Answer: 36

Even numbers are divisible by 2.

22. Which number is between 49 and 51?

48 50 52 53

Correct Answer: 50

50 lies exactly between 49 and 51.

23. Which is the successor of 0?

2 10 1 0

Correct Answer: 1

Successor means the next number.

24. Which number has no predecessor among whole numbers?

1 2 5 0

Correct Answer: 0

0 is the smallest whole number.

25. Which number is greater than 999?

1000 998 997 899

Correct Answer: 1000

1000 comes immediately after 999.

26. Which is the correct ascending order?

9, 5, 2 2, 5, 9 5, 9, 2 9, 2, 5

Correct Answer: 2, 5, 9

Ascending order means smallest to greatest.