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Whole Numbers

    Exercise 2.1

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6th class > Whole Numbers > Exercise 2.1

Exercise 2.1

1. Write the next three natural numbers after 10999.

Hint:Simply add 1, 2, and 3 to that number.

First Number:

Second Number:

Third Number:

2. Write the three whole numbers occurring just before 10001.

Hint:Simply subtract 1, 2, and 3 from 10,001.

First Number:

Second Number:

Third Number:

3. Which is the smallest whole number?

Hint:Remember that whole numbers include all non-negative numbers, starting from zero.

Answer: The smallest whole number is .

4. How many whole numbers are there between 32 and 53?

Identify the range: We need the numbers between 32 and 53. This range does not include 32 and 53 themselves.
Find the smallest number after 32 and the largest number before 53: These are 33 and 52, respectively.
Count the numbers from 33 to 52: To find the count of whole numbers, we use the formula for counting numbers in a sequence, which is:
Count = (Largest number − Smallest number) - 1
So, Count = (53 − 32 ) - 1 = - 1 =

5. Write the successor of (a) 2440701 (b) 100199

Successor of a number is the number that comes immediately after it, which is found by adding 1 to the given number.
(a) 2440701 + 1 =
(b) 100199 + 1 =

6. Write the predecessor of : (a) 94 (b) 10000

The predecessor of a number is the number that comes immediately before it, which is found by subtracting 1 from the given number.
(a) 94 - =
(b) 10000 - =

7. In each of the following pairs of numbers, state which whole number is on the left of the other number on the number line. Also write them with the appropriate sign (>, <) between them.

Which number is on the left of the other?

  • For the pair (530 and 503) : 503 is than 530, so 503 is on the .
  • Thus, 503 530
  • For the pair (370 and 307): 307 is than 370, so 307 is on the .
  • Thus, the appropriate sign is: 307 370.
  • For the pair (98765 and 56789) : 56789 is than 98765, so 56789 is on the .
  • The appropriate sign is: 56789 98765.
  • For the pair (9830415 and 10023001) : 9830415 is than 10023001, so 9830415 is on the .
  • The appropriate sign is: 9830415 10023001
  • We have solved the problem.

8. Which of the following statements are true (T) and which are false (F).

Instructions

Zero is the smallest natural number.
400 is the predecessor of 399
Zero is the smallest whole number.
600 is the successor of 599.
All natural numbers are whole numbers.
All whole numbers are natural numbers.
The predecessor of a two digit number is never a single digit number
1 is the smallest whole number.
The natural number 1 has no predecessor.
The whole number 1 has no predecessor
The whole number 13 lies between 11 and 12
True
False