## RS Aggarwal Class 6 Math Third Chapter Whole Numbers Exercise 3A Solution

## EXERCISE 3A

**(****1) Write the Next three whole numbers after 30999.**

**Ans: **31000, 31001, 31002.

**(2) Write the three whole numbers occurring just before 1001.**

**Ans:** 10000, 9999, 9998.

**(3) How many whole numbers are there between 1032 and 1209?**

**Ans:** 176.

**(4) Which is the smallest whole number?**

**Ans:** 0.

**(5) Write the successor of :**

**(i) 2540801**

The successor of 2540501= (2540801 + 1)= 254802.

**(ii) 9999**

The successor of 9999= (9999 + 1)= 10000.

**(iii) 50904**

The successor of 50904= (50904 + 1)= 50905.

**(iv) 61639**

The successor of 61639= (61639 + 1)= 61640.

**(v) 687890**

The successor of 687890= (687890 + 1)= 687891.

**(vi) 5386700**

The successor of 5386700= ( 5386700 + 1)= 5386701.

**(vii) 6475999**

The successor of 6475999= (6475999 + 1)= 6476000.

**(viii) 9999999**

The successor of 9999999= (999999 + 1)= 10000000.

**(6) Write the predecessor of:**

**(i) 97**

The predecessor is (97 – 1)= 96.

**(ii) 10000**

The predecessor is (10000 – 1)= 9999.

**(iii) 36900**

The predecessor is (36900 – 1)= 36899.

**(iv) 7684320**

The predecessor is (7684320 – 1)= 7684319.

**(v) 1566391**

The predecessor is (1566391 – 1)= 1566390.

**(vi) 2456800**

The predecessor is (2456800 -1)= 2456799.

**(vii) 100000**

The predecessor is (100000 – 1)= 99999.

**(viii) 1000000**

The predecessor is (1000000 – 1)= 999999.

**(7) Write down three consecutive whole numbers just preceding 7510001**.

Ans: 7510000, 7509999, 7509998.

**(8) Write (T) for true and (F) for false against each the following statements:**

**(i) Zero is the smallest natural number.**

Ans: F

Statement: 1 is smallest natural number.

**(ii) Zero is the smallest whole number.**

Ans: T

**(iii) Every whole number is a natural number.**

Ans: F

Statement: Natural numbers together with ‘0’ are called whole number.

**(iv) Every natural number is a whole number.**

Ans: T

**(v) 1 is the smallest whole number.**

Ans: F

Statement: 0 is the smallest whole number.

**(vi) The natural number 1 has no predecessor.**

Ans: T

**(vii) The whole number 1 has no predecessor.**

Ans: F

Statement: The predecessor of 1 is 0.

**(viii) The whole number 0 has no predecessor.**

Ans: T

**(ix) The predecessor of a two-digit number is never a single-digit number**.

Ans: F

Statement: The predecessor of 10 is 9. Which is single-digit number.

**(x) The successor of a two-digit number is always a two-digit number.**

Ans: F

Statement: The successor of two-digit number will be a also three digit-number. If it is 99.

**(xi) 500 is the predecessor of 499.**

Ans: F

Statement: 500 is the successor of 501.

**(xii) 7000 is the successor of 6999.**

Ans: T.

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