## Number Names and Expanded Form

## Try These (1) Solution

Read and expand the numbers

**Question (1)** 50000

**Answer**

Number Name: Fifty thousand

Expanded Form: 5 × 10000

**Question (2)** 41000

**Answer**

Number Name: Forty one thousand

Expanded Form:

4 × 10000 + 1000

**Question (3)** 47300

**Answer**

Number Name: Forty seven thousand three hundred

Expanded Form:

4 × 10000 + 7 × 1000 + 3 × 100

**Question (4)** 57630

**Answer**

Number Name: Fifty seven thousand six hundred thirty

Expanded form:

5 × 10000 + 7 × 1000 + 6 × 100 + 3 × 10

**Question (5)** 29485

**Answer**

Number Name: Twenty nine thousand four hundred eighty five

Expanded Form:

2 × 10000 + 9 × 1000 + 4 × 100 + 8 × 10 + 5

**Question (6)** 29085

**Answer**

Number name: Twenty nine thousand eighty five

Expanded Form:

2 × 10000 + 9 × 1000 + 8 × 10 + 5

**Question (7)** 20085

**Answer**

Number Name: Twenty thousand eighty five

Expanded form:

2 × 10000 + 8 × 10 + 5

**Question (8)** 20005

**Answer**

Number name: Twenty thousand five

Expanded form:

2 × 10000 + 5

### Write five more 5-digit numbers, read them and expand them

**Example Question (1)** 51235

**Answer**

Number Name: Fifty one thousand two hundred thirty five

Expanded Form:

5 × 10000 + 1 × 1000 + 2 × 100 + 3 × 10 + 5

**Example Question (2)** 89532

**Answer**

Number Name: Eighty nine thousand five hundred thirty two

Expanded Form:

8 × 10000 + 9 × 1000 + 5 × 100 + 3 × 10 + 2

**Example Question (3)** 62587

**Answer**

Number Name: Sixty two thousand five hundred eighty seven

Expanded Form:

6 × 10000 + 2 × 1000 + 5 × 100 + 8 × 10 + 7

**Example Question (4)** 91565

**Answer**

Number Name: Ninty one thousand five hundred sixty five

Expanded Form:

9 × 10000 + 1 × 1000 + 5 × 100 + 6 × 10 + 5

**Example Question (5)** 26352

**Answer**

Number Name: Twenty six thousand three hundred fifty two

Expanded Form:

2 × 10000 + 6 × 1000 + 3 × 100 + 5 × 10 + 2

## Try These (2) Solution

Read and expand the numbers wherever there are blanks

**Question (1)** 4,57,928

**Answer**

Number Name: Four lakh fifty seven thousand nine hundred twenty eight

Expanded Form:

4 × 100000 + 5 × 10000 + 7 × 1000 + 9 × 100 + 2 × 10 + 8

**Question (2)** 4,07,928

**Answer**

Number Name: Four lakh seven thousand nine hundred twenty eight

Expanded Form:

4 × 100000 + 7 × 1000 + 9 × 100 + 2 × 10 + 8

**Question (3)** 4,00,829

**Answer**

Number Name: Four lakh eight hundred twenty nine

Expanded Form:

4 × 100000 + 8 × 100 + 2 × 10 + 9

**Question (4)** 4,00,029

**Answer**

Number Name: Four lakh twenty nine

Expanded Form:

4 × 100000 + 2 × 10 + 9

## Try These (3) Solution

**Question (1)** What is 10 – 1 = ?

**Answer**

10 – 1 = 9 **Answer**

**Question (2)** What is 100 – 1 = ?

**Answer**

100 – 1 = 99 **Answer**

**Question (3)** What is 10,000 – 1 = ?

**Answer**

10,000 – 1 = 9,999 **Answer**

**Question (4)** What is 1,00,000 – 1 = ?

**Answer**

1,00,000 – 1 = 99,999 **Answer**

**Question (5)** What is 1,00,00,000 – 1 = ?

**Answer**

1,00,00,000 – 1 = 99,99,999 **Answer**

## Try These (4) Solution

**Question (1)** Give five examples where the number of things counted would be more than 6-digit number.

**Answer**

(a) The distance from earth to the moon

**Explanation** The distance from the earth to moon is 38,44,00,000 meter.

So the distance is denoted using more than 6-digits

(b) The speed of light

**Explanation** The speed of light is 30,00,00,000 meter per second

So the speed of light is denoted using more than 6-digits

(c) The population of India

**Explanation** The population of India is about as per estimation 140,00,00,000

So the population of India is denoted using more than 6-digits

(d) The number of starts

**Explanation** The number of stars are countless.

So, if we would be above to count the number of stars it will be more than 6-digits.

(e) The distance between Srinagar to Kanyakumari will be more than six digits if we calculate it in meter.

**Explanation**

The distance between Srinagar to Kanyakumari is about 3636 km.

If we convert it into meter then it will be 36,36,000 meter. So this is a number having more than 6-digits.

**Question (2)** Starting from the greatest 6-digit number, write the previous five numbers in descending order.

**Answer**

The greatest 6-digit number = 9,99,999

Five previous numbers to 9,99,999 in the descending order are

(a) 9,99,998 (b) 9,99,997 (c) 9,99,996 (d) 9,99,995 (e) 9,99,994

**Question (3)** Starting from 8-digit number, write the next five numbers in ascending order and read them.

**Answer**

One of the five digit number is 12,345

Number name: Twelve thousand three hundred forty five

Next five numbers in ascending order to 12,345 are

(a) 12,346 (**Number name**: Twelve thousand three hundred forty six)

(b) 12,347 (**Number name**: Twelve thousand three hundred forty seven)

(c) 12,348 (**Number name**: Twelve thousand three hundred forty eight)

(d) 12,349 (**Number name**: Twelve thousand three hundred forty nine)

(e) 12,350 (**Number name**: Twelve thousand three hundred fifty)