## Chapter 2 – Number Work

## Problem Set 2

**1. Using the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 write ten each of two-, three-, four- and five-digit numbers. Read the numbers.****Ans:**

Two-Digit Numbers:

10 – Ten

24 – Twenty-Four

57 – Fifty-Seven

38 – Thirty-Eight

69 – Sixty-Nine

42 – Forty-Two

85 – Eighty-Five

16 – Sixteen

93 – Ninety-Three

75 – Seventy-Five

Three-Digit Numbers:

123 – One Hundred and Twenty-Three

456 – Four Hundred and Fifty-Six

789 – Seven Hundred and Eighty-Nine

234 – Two Hundred and Thirty-Four

567 – Five Hundred and Sixty-Seven

890 – Eight Hundred and Ninety

345 – Three Hundred and Forty-Five

678 – Six Hundred and Seventy-Eight

901 – Nine Hundred and One

432 – Four Hundred and Thirty-Two

Four-Digit Numbers:

1234 – One Thousand Two Hundred and Thirty-Four

5678 – Five Thousand Six Hundred and Seventy-Eight

9012 – Nine Thousand and Twelve

3456 – Three Thousand Four Hundred and Fifty-Six

7890 – Seven Thousand Eight Hundred and Ninety

2345 – Two Thousand Three Hundred and Forty-Five

6789 – Six Thousand Seven Hundred and Eighty-Nine

0123 – One Thousand Two Hundred and Thirty-Four

4567 – Four Thousand Five Hundred and Sixty-Seven

8901 – Eight Thousand Nine Hundred and One

Five-Digit Numbers:

12345 – Twelve Thousand Three Hundred and Forty-Five

67890 – Sixty-Seven Thousand Eight Hundred and Ninety

23456 – Twenty-Three Thousand Four Hundred and Fifty-Six

78901 – Seventy-Eight Thousand Nine Hundred and One

34567 – Thirty-Four Thousand Five Hundred and Sixty-Seven

89012 – Eighty-Nine Thousand and Twelve

45678 – Forty-Five Thousand Six Hundred and Seventy-Eight

12349 – Twelve Thousand Three Hundred and Forty-Nine

56789 – Fifty-Six Thousand Seven Hundred and Eighty-Nine

90123 – Ninety Thousand One Hundred and Twenty-Three

**2. Fill in the blanks in the table below.**

**Ans:**

**3. As a part of the ‘Avoid Plastic Project’, Zilla Parishad schools made and provided paper bags to provision stores and green grocers. Read the taluka wise numbers of the bags and write the numbers in words.**

**Ans: **

(1) Twelve thousand seven hundred and forty.

(2) Twenty eight thousand and ninety five.

(3) Thirty one thousand six hundred and eight.

(4) Ten thousand nine hundred and seventy two.

**4. How many rupees do they make ?**

**(1) 20 notes of 1000 rupees, 5 notes of 100 rupees and 14 notes of 10 rupees.**

**Ans: **

20 notes of 1000 rupees = ₹ 20,000

5 notes of 100 rupees = ₹ 100

14 notes of 10 rupees = ₹ 140

20000

+ 140

+ 500

20640

**Ans:** The above notes make ₹ 20,640 in all.

**(2) 15 notes of 1000 rupees, 12 notes of 100 rupees, 8 notes of 10 rupees and 5 coins of 1 rupee.**

**Ans: **

15 notes of 1000 rupees = ₹ 14,000

12 notes of 100 rupees = ₹ 1200

8 notes of 10 rupees = ₹ 80

5 coins of 1 rupee = ₹ 5

14000

+ 1200

+ 80

16285

**Ans:** The above notes make ₹ 16,285 in all.

**5. Write the biggest and the smallest five-digit numbers that can be made using the digits 4, 5, 0, 3, 7 only once.****Ans:**

Biggest number – 75,430

Smallest number – 30,457

**6. The names of some places and their populations are given below. Use this information to answer the questions that follow.**

**Tala : 40,642 **

**Gaganbawada : 35,777 **

**Bodhwad : 91,256**

**Moregaon : 87,012 **

**Bhamragad : 35,950 **

**Velhe : 54,497**

**Ashti : 76,201 **

**Washi : 92,173 **

**Morwada : 85,890**

**(1) Which place has the greatest population? What is its population?**

**Ans:** Washi – 92,173

**(2) Which place, Morwada or Moregaon, has the greater population?**

**Ans:** Moregaon

**(3) Which place has the smallest population? How much is it?**

**Ans:** Gaganbawada – 35,777

## Problem Set 3

**1. Read the numbers and write them in words.**

**(1) 7,65,234 **

**Ans:** Seven lakh, sixty-five thousand, two hundred and thirty four.

**(2) 4,73,225 **

**Ans:** Four lakh, seventy-three thousand, two hundred and twenty-five.

**(3) 3,27,001 **

**Ans:** Three lakh, twenty-seven thousand, and one.

**(4) 8,75,375 **

**Ans:** Eight lakh, seventy-five thousand, three hundred and seventy-five.

**(5) 1,50,437 **

**Ans:** One lakh, fifty thousand, four hundred and thirty-seven.

**(6) 2,03,174 **

**Ans:** Two lakh, three thousand, one hundred and seventy-four.

**(7) 6,47,851**

**Ans:** Six lakh, forty-seven thousand, eight hundred and fifty-one.

**(8) 9,00,999 **

**Ans:** Nine lakh, nine hundred and ninety-nine.

**(9) 5,75,010 **

**Ans:** Five lakh, seventy-five thousand, and ten.

**(10) 4,03,005**

**Ans:** Four lakh, three thousand, and five.

**2. Read the numbers and write them in figures.**

**(1) One lakh thirty-five thousand eight hundred and fifty-five**

**Ans:** 1,35,855

**(2) Seven lakh twenty-seven thousand**

**Ans:** 7,27,000

**(3) Four lakh twenty-five thousand three hundred**

**Ans:** 4,25,300

**(4) Nine lakh nine thousand ninety-nine**

**Ans:** 9,09,099

**(5) Seven lakh forty-nine thousand three hundred and sixty-two**

**Ans:** 7,49,362

**(6) Eight lakh**

**Ans:** 8,00,000

**3. Make five six-digit numbers, each time using any of the digits 0 to 9 only once.**

**Ans: **

(1) 7,64,351

(2) 5,40,293

(3) 3,76,125

(4) 2,49,108

(5) 8,75,641

## Problem Set 4

**1. Read the numbers and write them in words. **

**(1) 25,79,899 **

**Ans:** Twenty-five lakh, seventy-nine thousand, eight hundred and ninety-nine.

**(2) 30,70,506 **

**Ans:** Thirty lakh, seventy thousand, five hundred and six.

**(3) 45,71,504**

**Ans:** Forty-five lakh, seventy-one thousand, five hundred and four.

**(4) 21,09,900**

**Ans:** Twenty-one lakh, nine thousand, and nine hundred.

**(5) 43,07,854 **

**Ans:** Forty-three lakh, seven thousand, eight hundred and fifty- four.

**(6) 50,00,000 **

**Ans:** Fifty lakh.

**(7) 60,00,010 **

**Ans:** Sixty lakh, and ten.

**(8) 70,00,100**

**Ans:** Seventy lakh, and one hundred.

**(9) 80,01,000 **

**Ans:** Eighty lakh, and one thousand.

**(10) 90,10,000 **

**Ans:** Ninety lakh, and ten thousand.

**(11) 91,00,000 **

**Ans:** Ninety-one lakh.

**(12) 99,99,999**

**Ans:** Ninety-nine lakh, ninety-nine thousand, nine hundred and ninety-nine

**2. Given below are the deposits made in the Women’s Co-operative Credit Societies of some districts. Read those figures. **

**Pune : ₹ 94,29,408 **

**Ans:** Rupees Ninety-four lakh, twenty-nine thousand, four hundred and eight.

**Nashik : ₹ 61,07,187 **

**Ans:** Rupees Sixty-one lakh, seven thousand, one hundred and eighty-seven.

**Nagpur : ₹ 46,53,570 **

**Ans:** Rupees Forty-six lakh, fifty-three thousand, five hundred and seventy.

**Ahmadnagar : ₹ 45,43,159 **

**Ans:** Rupees Forty-five lakh, forty-three thousand, one hundred and fifty-nine.

**Aurangabad : ₹ 37,01,282 **

**Ans:** Rupees Thirty-seven lakh, one thousand, two hundred and eighty-two.

**Yavatmal : ₹ 27,72,348**

**Ans:** Rupees Twenty-seven lakh, seventy-two thousand, three hundred and forty-eight.

**Sindhudurg : ₹ 58,49,651**

**Ans:** Rupees Fifty-eight lakh, forty-nine thousand, six hundred and fifty-one

## Problem Set 5

**1. Write the place value of the underlined digit.**

**(1) 78, 95,210 **

**Ans:** 70,00,000 – Seventy lakh

**(2) 14, 95,210 **

**Ans:** 4,00,000 – Four lakh

**(3) 3,52,749 **

**Ans:** 50,000 – Fifty thousand

**(4) 50,000 **

**Ans:** 0 – Zero

**(5) 89, 99,988 **

**Ans:** 90,000 – Ninety Thousand

**2. Write the numbers in their expanded form.**

**(1) 56, 43, 215 **

**Ans:** 50,00,000 + 6,00,000 + 40,000 + 3,000 + 200 + 10 + 5

**(2) 70, 815 **

**Ans:** 70,000 + 0 + 800 + 10 + 5

**(3) 8, 35, 999 **

**Ans:** 8,00,000 + 30,000 + 5,000 + 900 + 90 + 9

**(4) 8, 88, 889 **

**Ans:** 8,00,000 + 80,000 + 8,000 + 800 + 80 + 9

**(5) 92, 32, 992**

**Ans:** 90,00,000 + 2,00,000 + 30,000 + 2,000 + 900 + 90 + 2

#### 3. Write the place name and place value of each digit in the following numbers.

**(1) 35, 705 ****Ans:**

**(2) 7, 82, 899** **Ans:**

**(3) 82, 74, 508****Ans: **

**4. The expanded form of the number is given. Write the number.**

**(1) 60,000 + 4,000 + 600 + 70 + 9 **

**Ans:** 64,679

**(2) 9,00,000 + 20,000 + 7,000 + 800 + 5**

**Ans:** 9,27,805

**(3) 20,00,000 + 3,00,000 + 60,000 + 9,000 + 500 + 10 + 7**

**Ans:** 23,69,517

**(4) 7,00,000 + 80,000 + 4,000 + 500 **

**Ans:** 7,84,500

**(5) 80,00,000 + 50,000 + 1,000 + 600 + 9**

**Ans:** 80,51,609

## Problem Set 6

**1. Write the proper symbol, ‘<’ or ‘>’ in the box. **

**(1) 5,705 _____ 15,705 **

**Ans:** 5,705 < 15,705

**(2) 22,74,705 _____ 12,74,705**

**Ans:** 22,74,705 > 12,74,705

**(3) 35,33,302 _____ 35,32,302**

**Ans:** 35,33,302 > 35,32,302

**(4) 99,999 _____ 9,99,999**

**Ans:** 99,999 < 9,99,999

**(5) 4,80,009 _____ 4,90,008 **

**Ans:** 4,80,009 < 4,90,008

**(6) 35,80,177 _____ 35,88,172**

**Ans:** 35,80,177 < 35,88,172

**2. Solve the problems given below.**

**(1) The Swayamsiddha Savings Group made 3,45,000 papads while the Swabhimani Group made 2,95,000. Which group made more papads?**

**Ans: **

Swayamsiddha Savings Group (3,45,000) > Swabhimani Group (2,95,000)

**∴ Swayamsiddha Savings Group made more papads.**

**(2) Children of the Primary School in Ahmadnagar District collected 2,00,000 seeds while those in Pune District collected 3,25,000. Which children collected more seeds?**

**Ans:** Seeds collected by students in Ahmadnagar district (2,00,000) < Seeds collected by students in Pune district (3,25,000)

**∴ Students in Pune district collected more seeds.**

**(3) The number of people who took part in the Republic Day flag-hoisting ceremony was 2,01,306 in Pandharpur taluka and 1,97,208 in Malshiras taluka. In which taluka did a larger number of people participate? **

**Ans: **

Pandharpur taluka (2,01,306) > Malshiras taluka (1,97,208)

**∴ Larger number of people participated in Pandharpur taluka.**

**(4) At an exhibition, the Annapoorna Savings Group sold goods worth ₹ 5,12,345. The Nirman Group sold goods worth ₹ 4,12,900. This figure was ₹ 4,33,000 for the Srujan Group and ₹ 5,11,937 for the Savitribai Phule group. **

**Which group had the largest sales ?**

**Ans:** Annapoorna Savings Group had the largest sale.

**Which group had the smallest ?**

**Ans:** Nirman Group had the smallest sale.

**Write the sales figures in ascending order.**

**Ans:** Ascending order of the sales figure:

74,12,900 > 4,33,000 > 5,11,937 > 5,12,345.