Class 5

Balbharti Maharashtra Board Class 5 Maths Solutions Chapter 2 Number Work Problem Set 3 Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 5 Maths Solutions Chapter 2 Number Work Problem Set 3

Question 1.
Read the numbers and write them in words.
(1) 7,65,234
(2) 4,73,225
(3) 3,27,001
(4) 8,75,375
(5) 1,50,437
(6) 2,03,174
(7) 6,47,851
(8) 9,00,999
(9) 5,75,010
(10) 4,03,005
Answer:
(1) Seven lakh, sisxty-five thousand, two hundred and thirty-four.
(2) Four lakh, seventy-three thousand, two hundred and twenty-five.
(3) Three lakh, twenty-seven thousand and one
(4) Eight lakh seventy-five thousand three hundred and seventy-five
(5) One lakh fifty thousand four hundred and thirty seven
(6) Two lakh three thousand one hundred and seventy-four
(7) Six lakh forty seven thousand eight hundred and fifty-one
(8) Nine lakh nine hundred and ninety-nine
(9) Five lakh seventy-five thousand and ten
(10) Four lakh three thousand and five.

Question 2.
Read the numbers and write them in figures.
(1) One lakh thirty-five thousand eight hundred and fifty-five
(2) Seven lakh twenty-seven thousand
(3) Four lakh twenty-five thousand three hundred
(4) Nine lakh nine thousand ninety-nine
(5) Seven lakh forty-nine thousand three hundred and sixty-two
(6) Eight lakh one sixty tow
Answer:
(1) 1,35,008
(2) 7,27,1 55
(3) 4,25,003
(4) 9,09,099
(5) 7,49,003
(6) 8,00,162

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

• 4,09,138
• 3,17,045
• 1,20,645
• 9,72,860
• 6,54,302

Introducing seven-digit numbers
Teacher : Now we shall learn about seven-digit numbers. Suppose 10 farmers borrow ₹ 1,00,000 each from a Co-operative Bank. Then, how much is the total loan given by the bank to them?

Ajit : We must find out what is ten times 1,00,000. That is, we multiply 1,00,000 by 10. That means we write one zero after the number to be multiplied.

Ajay : 1,00,000 × 10 = 10,00,000

Teacher : This becomes a seven-digit number. We read it as ‘Ten lakh’. We must make one more place for the 10 lakhs to the left of the lakhs place. In western countries, the term million is used. One million is equal to ten lakhs.

Thus, ten lakh = 10,00,000.

Just as we read ten thousands and thousands together, we read ten lakhs and lakhs together. So, we read 18,35,614 as ‘eighteen lakh, thirty-five thousand, six hundred and fourteen.

Study the seven-digit numbers given below in figures and in words.

• 31,25,745 : thirty-one lakh, twenty-five thousand, seven hundred and forty-five
• 91,00,006 : ninety-one lakh and six
• 63,00,988 : sixty-three lakh, nine hundred and eighty-eight
• 88,00,400 : eighty-eight lakh, four hundred
• seventy-two lakh and ninety-five : 72,00,095
• seventy lakh, two thousand, three hundred : 70,02,300

Roman Numerals Problem Set 2 Additional Important Questions and Answers

Question 1.
Read the numbers and write them in words:

(1) 4,00,527
Answer:
Four lakh five hundred and twenty-seven.

(2) 7,34,016
Answer:
Seven lakh thirty-four thousand and sixteen.

Question 2.
Read the numbers and write them in figures.
(1) Nine lakh three thousand and twenty-three.
(2) One lakh one thousand one hundred and one.
Answer:
(1) 9,03,023
(2) 1,01,101

Balbharti Maharashtra Board Class 5 Maths Solutions Chapter 2 Number Work Problem Set 2 Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 5 Maths Solutions Chapter 2 Number Work Problem Set 2

Question 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.
Answer:

Two-digit numbers	Reading a number
37	Thirty-seven
80	Eighty
49	Forty-nine
65	Sixty-five
28	Twenty-eight
54	Fifty-four
92	Ninety-two
71	Seventy-one
16	Sixteen
22	Twenty-two
Three-digit numbers	Reading a number
504	Five hundred and four
386	Three hundred eighty-six
430	Four hundred thirty
891	Eight hundred ninety-one
615	Six hundred fifteen
267	Two hundred sixty-seven
900	Nine hundred
173	One hundred seventy-three
766	Seven hundred sixty-six
258	Two hundred and fifty-eight
Four-digit numbers	Reading a number
3,817	Three thousand eight hundred and seventeen
4,059	Four thousand fifty-nine
9,611	Nine thousand six hundred and eleven
7,413	Seven thousand four hundred thirteen
5,608	Five thousand six hundred and eight
Four-digit numbers	Reading a number
2,009	Two thousand and nine
6,420	Six thousand four hundred and twenty
1,357	One thousand three hundred and fifty-seven
8,172	Eight thousand one hundred and seventy-two
6,156     –	Six thousand one hundred and fifty-six
Five-digit numbers	Reading a number
41,309	Forty-one thousand, three hundred and nine
68,527	Sixty-eight thousand five hundred and twenty seven
50,348	Fifty thousand three hundred and forty eight
76,052	Seventy-six thousand and fifty-two
21,546	Twenty-one thousand five hundred and forty-six
10,358	Ten thousand three hundred and fifty-eight
94,215	Ninety-four thousand two hundred and fifteen
36,104	Thirty-six thousand one hundred and four
89,157	Eighty-nine thousand one hundred and fifty-seven
72,560	Seventy-two thousand five hundred and sixty

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

Answer:

	Devnagari numerals	International numerals	Number written in words
(1)	२,३५९	2,359	Two thousand three hundred and fifty nine
(2)	३२,७५६	32,756	Thirty two thousand seven hundred and fifty Six
(3)	६७,८५९	67,859	Sixty seven thousand eight hundred and fifty Nine
(4)	१,०३४	1,034	One thousand and thirty four
(5)	२७,८९५	27,895	Twenty seven thousand eight hundred and ninety five

Question 3.
As a part of the ‘Avoid Plastic Project’, Zilla Parishad schools made and provided paper bags to provision stores and greengrocers. Read the talukawise numbers of the bags and write the numbers in words.

Answer:

Talukas	No. of Bags	Numbers in words
Kopargaon	12,740	Twelve thousand seven hundred and forty
Shevgaon	28,095	Twenty-eight thousand and ninety-five
Karjat	31,608	Thirty-one thousand six hundred and eight
Sangamner	10,792	Ten thousand seven hundred and ninety-two

Question 4.
How many rupees do they make?
(1) 20 notes of 1000 rupees, 5 notes of 100 rupees and 14 notes of 10 rupees.
(2) 15 notes of 1000 rupees, 12 notes of 100 rupees, 8 notes of 10 rupees and 5 coins of 1 rupee.
Answer:

Question 5.
Write the biggest and the smallest five-digit numbers that can be made using the digits 4, 5, 0, 3, 7 only once.
Answer:
Biggest five digit number is 75,430 Smallest five digit number is 30,457

Question 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?
(2) Which place, Morwada or Moregaon, has the greater population?
(3) Which place has the smallest population? How much is it?
Answer:
(1) Washi has the greatest population. Population of Washi is 92,173
(2) Moregaon has the greater population.
(3) Gaganbawada has the smallest population. Its population is 35,777

Introducing six-digit numbers
Teacher : How much, do you think, is the price of a four-wheeler?
Ajay : Maybe about six or seven lakh rupees.
Teacher : Do you know exactly how much one lakh is?
Ajay : It’s a lot, isn’t it? More than even ten thousand, right?
Teacher : Yes, indeed ! Let’s find out just how much. What is 999 + 1?
Ajay : One thousand.
Teacher : You have learnt to write 99000, too. Now, if you add 1000 to that, you will get one hundred thousand. That’s what we call one lakh.
Vijay : 9999+1 is 10,000 (ten thousand). We had made the ten thousands place for it. Can we make a place for one lakh too in the same way?
Teacher : Yes, of course. Carry out the addition 99,999 + 1 and see what you get.

Here we keep carrying over till we have to make a place for the ‘lakh’ on the left of the ten thousands place. And we write the last carried over one in that place. The sum we get is read as ‘one lakh’.
Vijay : Kishakaka bought a second-hand car for two and a half lakh rupees.
Ajay : How much is two and a half lakh?
Teacher : One lakh is 100 thousand. So, half a lakh is 50 thousand. Because, half of 100 is 50.

Vijay : That means two and a half lakh is 2 lakh 50 thousand.
Teacher : Now write this number in figures.
Vijay : 2,50,000.
Teacher : We have seen that a hundred thousand is 1 lakh. If we have 1000 notes of 100 rupees, how many rupees would they make?
Vijay : 1000 notes of 100 rupees would make 1 lakh rupees.

Reading six-digit numbers
(1) 2,35,705 : two lakh thirty-five thousand seven hundred and five
(2) 8,00,363 : eight lakh three hundred and sixty-three
(3) 3,07,899 : three lakh seven thousand eight hundred and ninety-nine
(4) 9,00,049 : nine lakh forty-nine
(5) 5,30,735 : five lakh thirty thousand seven hundred and thirty-five

Writing six-digit numbers in figures
(1) Eight lakh, nine thousand and forty-three : There are 8 lakhs in this number. There are no ten thousands, so we write 0 in that place. As there are 9 thousands, we write 9 in the thousands place. We write 0 in the hundreds place as there are no hundreds. Forty-three is equal to 4 tens and 3 units, so in the tens and units places we write 4 and 3 respectively. In figures : 8,09,043.

When writing numbers in figures, write the digit in the highest place first and then, in each of the next smaller places, write the proper digit from 1 to 9. Write 0, if there is no digit in that place. For example, if the number eight lakh, nine thousand and forty-three is written as ‘89043’, it is wrong. It should be written as 8,09,043. Here, we have to write zero in the ten thousands place.

(2) Four lakh, twenty thousand, five hundred : In this figure, there aren’t any thousands in the thousands place, so we write 0 in it. Since there are five hundreds, we write 5 in the hundreds place. There are no tens and units, hence, we write 0 in those places. In figures : 4,20,500.

Roman Numerals Problem Set 2 Additional Important Questions and Answers

Question 1.
Fill in the blanks in the table below:
Answer:

	Devnagari numerals	International numerals	The number written in words
(1)	५,५१८	5,518	Five thousand five hundred and eighteen
(2)	४९,८०९	49,809	Forty-nine thousand eight hundred and nine
(3)	७,२५६	7,256	Seven thousand two hundred and fifty-six

Question 2.
Solve the following:

(1) In an election, the First candidate received 58,735 votes, the Second candidate received 65,500, the Third candidate received 85,450 and the Fourth candidate got 09,689 votes. Read the numbers of the votes and write the numbers in words.
Answer:
First candidate – 58,735 – Fifty-eight thousand seven hundred and thirty-five
Second candidate – 65,500 – Sixty-five thousand five hundred
Third candidate – 85,450 – Eighty-five thousand four hundred and fifty
Fourth candidate – 09,689 – Nine thousand six hundred and eighty-nine

Question 3.
How many rupees do they make?
*(1) 10 notes of 2,000 rupees, 5 notes of 100 rupees and 14 notes of 10 rupees.
Solution:
10 notes of 2,000 rupees = 10 x 2,000 ₹ 20,000
5 notes of 100 rupees = 5 x 100 = ₹ 500
14 notes of 10 rupees = 14 x 10 = ₹ 140
Total = ₹ 20,640

∴ They make, twenty thousand, six hundred and forty.

*(2) 7 notes of 2,000 rupees, 12 notes of loo rupees, 8 notes of 10 rupees and 5 coins of 1 rupee
Solution:
7 notes of 2,000 rupees = 7 x 2,000 = ₹ 14,000
12 notes of 100 rupees = 12 x 100 = ₹ 1,200
8 notes of 10 rupees = 8 x 10 = ₹ 80
5 coins of 1 rupee = 5 x 1 = ₹ 5
Total = ₹ 15,285

∴ They make, fifteen thousand, two hundred and eighty five.

(3) 4 notes of 2,000 rupees, 6 notes of 100 rupees and 12 notes of 10 rupees
Solution:
4 notes of 2,000 rupees = 4 x 2,000 = ₹ 8,000
6 notes of 100 rupees = 6 x 100 = ₹ 600
12 notes of 10 rupees = 12 x 10 = ₹ 120
Total = ₹ 8,720

∴ They make, eight thousand, seven hundred and twenty.

(4) 5 notes of 2,000 rupees, 9 notes of 500 rupees, 8 notes of 100 rupees, 7 notes of 50 rupees, 6 notes of 20 rupees and 5 note of 10 rupees
Solution:
5 notes of 2,000 rupees 5 x 2,000 = ₹ 10,000
9 notes of 500 rupees = 9 x 500 = ₹ 4,500
8 notes of 100 rupees = 8 x 100 = ₹ 800
7 notes of 50 rupees = 7 x 50 = ₹ 350
6 notes of 20 rupees = 6 x 20 = ₹ 120
5 notes of 10 rupees = 5 x 10 = ₹ 50
Total = ₹ 15,820

∴ They make, fifteen thousand, eight hundred and twenty.

*Question 4.
Write the biggest and the smallest numbers using all the given digits in every number. Use each digit only once.
(1) 4, 8, 0, 2, 6, 5;
(2) 2, 6, 7, 1, 4;
(3) 5, 9, 6, 1, 4, 3;
(4) 9, 4, 1, 3, 6;
(5) 5, 3, 0, 0, 2
Answer:
(1) Biggest six digit number is 8,65,420 Smallest six digit number is 2,04,568
(2) Biggest five digit number is 76,421 Smallest five digit number is 12,467
(3) Biggest six digit number is 9,65,431 Smallest six digit number is 1,34,569
(4) Biggest five digit number is 96,431 Smallest five digit number is 13,469
(5) Biggest five digit number is 53,200 Smallest five digit number is 20,035

Balbharti Maharashtra Board Class 5 Maths Solutions Chapter 2 Number Work Problem Set 5 Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 5 Maths Solutions Chapter 2 Number Work Problem Set 5

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

(1) 78, 95,210
(2) 14, 95,210
(3) 3,52,749
(4) 50,000
(5) 89, 99,988
Answer:
(1) Here, the underlined digit 7 is in ten lakhs place.
So, its place value is 70,00,000 (70 lakhs)

(2) Here, the underlined digit 4 is in lakhs place.
So, its place value is 4,00,000 (4 lakhs)

(3) Here, the underlined digit 5 in ten thousands place.
So, its place value is 50,000 (50 thousands)

(4) Here, the underlined digit ‘0’ is in the unit place.
Hence, its place value is 0 (zero)

(5) Here, the underlined digit 9 is in ten thousands place
So, its place value is 90,000 (90 thousands)

Question 2.
Write the numbers in their expanded form.
(1) 56, 43, 215
(2) 70, 815
(3) 8, 35, 999
(4) 8, 88, 889
(5) 92, 32, 992
Answer:
(1) 56,43,215: 50,00,000 + 6,00,000 + 40,000 + 3,000 + 200 + 10 + 5
(2) 70,815 : 70,000 + 800 + 10 + 5
(3) 8,35,999 : 8,00,000 + 30,000 + 5,000 + 900 + 90 + 9
(4) 8,88,889 : 8,00,000 + 80,000 + 8,000 + 800 + 80 + 9
(5) 92,32,992: 90,00,000 + 2,00,000 + 30,000 + 2,000 + 900 + 90 + 2

Question 3.
Write the place name and place value of each digit in the following numbers.
(1) 35, 705
Answer:
Digit 3 is in ten thousands place, its place value is 30,000
Digit 5 is in thousands place, its place value is 5,000
Digit 7 is in hundreds place, its place value is 700
Digit 0 is in ten place, its place value is 0
Digit 5 is in units place, its place value is 5

(2) 7, 82, 899
Answer:
Digit 7 is in lakhs place, its place value is 7.0. 000
Digit 8 is in ten thousands place, its place value is 80,000
Digit 2 is in thousands place, its place value is 2,000
Digit 8 is in hundreds place, its place value is 800
Digit 9 is- in ten place, its place value is 90 Digit 9 is in units place, its place value is 9

(3) 82, 74, 508
Answer:
Digit 8 is in ten lakhs place, its place value is 80,00,000
Digit 2 is in lakhs place, its place value is 2.0. 000
Digit 7 is in ten thousands place, its place value is 70,000
Digit 4 is in thousands place, its place value is 4,000
Digit 5 is in hundreds place, its place value is 500
Digit 0 is in ten place, its place value is 0
Digit 8 is in units place, its place value is 8

Question 4.
The expanded form of the number is given. Write the number.
(1) 60, 000 + 4000 + 600 + 70 + 9
(2) 9, 00, 000 + 20,000 + 7000 + 800 + 5
(3) 20,00,000 + 3,00,000 + 60,000 + 9000 + 500 + 10 + 7
(4) 7,00,000 + 80,000 + 4000 + 500
(5) 80,00,000 + 50,000 + 1000 + 600 + 9
Answer:
(1) The number is 64,679
(2) The number is 9,27,805
(3) The number is 23,69,517
(4) The number is 7,84,500
(5) The number is 80,51,609

An interesting dice game

Prepare a table with the name of each player, as shown below.
In front of each name, there are boxes to make seven-digit numbers.

Game 1 :
The first player throws the dice and writes that number in any one of the boxes in front of his/her name. You can write only one number in each box and once it is written, you cannot change its place. The other players do the same till all the boxes are filled and each one gets a seven-digit number. The one with the largest number is the winner.

Game 2 :
Use the same table, but you may write the number (you get on throwing the dice) in any box in front of anyone’s name. The one with the largest number is the winner.

Game 3 :
The rules are the same as for game 2, but the one with the smallest number is the winner.

Bigger and smaller numbers

Hamid : How do we determine the smaller or bigger number when we are dealing with six- or seven-digit numbers ?

Teacher : You have learnt how to do that with five-digit numbers. The number with the bigger ten thousands digit is the bigger number. If they are the same, we look at the thousands digits to determine the smaller or bigger number.

Now, can you tell how to compare six- or seven-digit numbers ?

Hamid : Yes, I can. First, we’ll look at the ten lakhs digits. If they are the same, we’ll look at the digits in the lakhs place. If those are equal, we look at the ten thousands place to tell the smaller or bigger number and so on. Besides, we might be able to tell which of the numbers is bigger, just by looking at the number of digits in each number. Right ?

Teacher : Absolutely ! The number with more digits is the bigger number.

Roman Numerals Problem Set 5 Additional Important Questions and Answers

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

(1) 81,67,303
Answer:
Here, the underlined digit 7 is in thousands place.
So, its place value is 7,000 (7 thousands)

(2) 41,35,062
Answer:
Here, the underlined digit 6 is in ten’s place.
So, its place value is 60 (sixty)

(3) 90,31,265
Answer:
Here, the underlined digit 3 is in ten thousands place.
So, its place value is 30,000 (30 thousands)

Question 2.
Write the numbers in their expanded form.
Answer:
(1) 51,03,640: .50,00,000 + 1,00,000 + 3,000 + 600 + 40
(2) 60,60,600: 60,00,000 + 60,000 + 600
(3) 71,45,042 : 70,00,000 + 1,00,000 + 40,000 + 5,000 + 40 + 2

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

(1) 1,88,919
Answer:
Digit 1 is in lakhs place, its place value is 1,00,000
Digit 8 is in ten thousands place, its place value is 80,000
Digit 8 is in thousands place, its place value is 8,000
Digit 9 is in hundreds place, its place value is 900
Digit 1 is in ten place, its place value is 10
Digit 9 is in units place, its place value is 9

Question 4.
The expanded form write the number.

(1) 40,00,000 + 5,00,000 + 10,000 + 3,000 + 200 + 70+8
Answer:
The number is 45,13,278

(2) 80,000 + 300 + 40 + 1
Answer:
The number is 80,341

Balbharti Maharashtra Board Class 5 Maths Solutions Chapter 3 Addition and Subtraction Problem Set 8 Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 5 Maths Solutions Chapter 3 Addition and Subtraction Problem Set 8

Question 1.
Add the following:

(1) 42,311 + 65,36,624

Answer:
65,78,635

(2) 3,17,529 + 8,04,613

Answer:
11,22,142

(3) 12,42,746 + 4,83,748

Answer:
17,26,494

(4) 24,12,636 + 23,19,058

Answer:
47,31,694

(5) 2,654 + 71,209 + 5,03,789
1 1 2
2 6 5 4
+
7 1 2 0 9
+
5 0 3 7 8 9
Answer:
5 7 7 6 5 2

(6) 29 + 726 + 51,36,274
1 1 1
_______________
2 9
+
7 2 6
+
5 1 3 6 2 7 4
Answer:
5 1 3 7 0 2 9

(7) 14,02,649 + 524 + 28,13,749
1 1 1 2
_____________
1 4 0 2 6 4 9
+
5 2 4
+
2 8 1 3 7 4 9
Answer:
4 2 1 6 9 2 2

(8) 23,45,678 + 9,87,654
1 1 1 1 1 1
_____________
2 3 4 5 6 7 8
+
9 8 7 6 5 4
Answer:
3 3 3 3 3 3 2

(9) 22 + 6,047 + 3,84,527
1 1
2 2
+
6 4 0 7
+
3 8 4 5 2 7
Answer:
3 9 0 9 5 6

(10) 2,345 + 65,432 + 76,54,369
1 1 1 1 1
_________
2 3 4 5
+
6 5 4 3 2
+
7654369
Answer:
7 7 2 2 1 4 6

Study the following word problem.

During the polio eradication campaign, 3,17,658 children were given the polio vaccine in one District and 2,04,969 children in another. Altogether, how many children got the vaccine?
3 1 7 6 5 8
+
2 0 4 9 6 9
___________
5 2 2 6 2 7
___________
Altogether, 5,22,627 children got the vaccine.

Addition and Subtraction Problem Set 8 Additional Important Questions and Answers

Question 1.
Add the following:

(1) 4,506 + 3,82,459 + 6,12,999
Solution:
1 1 2
_________
4 5 0 6
+
3 8 2 4 5 9
+
6 1 2 9 9 9
Answer:
9 9 9 9 6 4

(2) 983 + 4,50,703 + 5,48,313
Solution:
1
________
9 0 0 3
+
4 5 0 7 0 3
+
5 4 00 3 1 3
Answer:
9 9 9 9 9 9

Balbharti Maharashtra Board Class 5 Maths Solutions Chapter 3 Addition and Subtraction Problem Set 7 Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 5 Maths Solutions Chapter 3 Addition and Subtraction Problem Set 7

Question 1.
Add the following

Answer:

Answer:

Answer:

Answer:

Addition of six-digit and seven-digit numbers

Last year, you have learned to add five-digit numbers. Six-and seven-digit numbers can
be added using the same method.

Study the following examples.

Add :
Example (1)
1,43,057 + 4,21,689

Example (2)
26,42,073 + 7,39,478

Example (3)
3,12,469 + 758 + 24,092
3 1 2 4 6 9
+ 7 5 8
+ 2 4 0 9 2
____________
3 3 7 3 1 9
____________

Example (4)
64 + 409 + 5,13,728
6 4
+ 4 0 9
+ 5 1 3 7 2 8
_____________
5 1 4 2 0 1
_____________

In the examples 3 and 4, the numbers are carried over mentally.

Question 2.
(1)

Answer:

(2)

Answer:

Balbharti Maharashtra Board Class 5 Maths Solutions Chapter 1 Roman Numerals Problem Set 1 Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 5 Maths Solutions Chapter 1 Roman Numerals Problem Set 1

Question 1.
Write all the numbers from 1 to 20 using Roman numerals.
Answer:

Question 2.
Write the following numbers using international numerals.
(1) V
(2) VII
(3) X
(4) XIII
(5) XIV
(6) XVI
(7) XVIII
(8) IX
Answer:
(1) 5
(2) 7
(3) 10
(4) 13
(5) 14
(6) 16
(7) 18
(8) 9

Question 3.
Fill in the empty boxes.

Answer:

Question 4.
Write the numbers using Roman numerals.
(1) 9
(2) 2
(3) 17
(4) 4
(5) 11
(6) 18
Answer:
(1) IX
(2) II
(3) XVII
(4) IV
(5) XI
(6) XVIII

Question 5.
In the table below, each given number is written in international numerals and then again in Roman numerals. If it is written correctly in Roman numerals, put ‘/’ in the box under it. If not, put ‘X’ and correct it.

Answer:

Something more : L, C, D and M are also used as Roman numerals.

Activity : Apart from clocks and watches, where else do we see Roman numerals?

The decimal system of writing numbers
It is not easy to read or write numbers using Roman numerals. It also makes calculations difficult. You have learnt to write numbers using the ten digits, 0 to 9. In that system, the value of a digit depends upon its place in the number. This system of writing numbers is called the ‘decimal system’.

Mathematicians of ancient India invented the decimal system of writing numbers and began to use it. Later, this system was accepted in all parts of the world because it was simple and convenient.

Roman Numerals Problem Set 1 Additional Important Questions and Answers

Question 1.
Write all the numbers from 21 to 30 using roman numerals.
Answer:

Question 2.
Write the following numbers using international numerals.
(1) XXV
(2) XXIX.
Answer:
(1) 25
(2) 29

Question 3.
Fill in the empty boxes:
Answer:

Question 4.
Write the numbers using Roman Numerals:
(1) 1
(2) 21
(3) 10
Answer:
(1) I
(2) XXI
(3) X

Question 5.
In the table below, each given number is written in international numerals and then again in Roman numerals. If it is written correctly in Roman numerals put ‘S’ in the box under it. if not, put ‘x’ and correct it.
Answer:

Question 6.
Write all the numbers from 31 to 40 using Roman numerals.
Answer:

Question 7.
Write the following numbers using international numerals.
(1) VI
(2) XI
(3) XIV
(4) XVII
Answer:
(1) 6
(2) 11
(3) 14
(4) 17

Question 8.
Fill in the empty boxes:

Answer:
Four = IV, 16 = XVI, Twenty = XX, XV =15

Question 9.
Write the numbers using Roman numerals in the given boxes.
(1) 3 [ ]
(2) 8 [ ]
(3) 13 [ ]
(4) 16 [ ]
Answer:
(1) III
(2) VIII
(3) XIII
(4) XVI

Question 10.
State true or false of the following. If the statement is false then correct it in Roman numerals.
(1) 3 is written as IIV
(2) 14 is written as XIV
(3) 16 is written as XVI
(4) 19 is written as IXX
Answer:
(1) False (III)
(2) True
(3) True
(4) False (XIX)

Question 11.
Write the answers Roman numerals.
(1) III + IV = [ ]
(2) IV + V = [ ]
(3) IX – X = [ ]
(4) VI + X = [ ]
(5) III + II = [ ]
(6) V + V = [ ]
(7) XXX + XX = [ ]
(8) L + L = [ ]
Answer:
(1) VII
(2) IX
(3) XIX
(4) XVI
(5) V
(6) X
(7) L
(8) C

Question 12.
Match the columns:

Answer:
(1 – b),
(2 – a),
(3 – d),
(4 – c)

Question 13.
Circle the correct international numeral of the following:
(1) XXIV
(a) 14
(b) 20
(c) 24
Answer:
(c) 24

(2) VIII
(a) 8
(b) 207
(c) 19
Answer:
(a) 8

(3) XXIX
(a) 31
(b) 29
(c) 20
Answer:
(b) 29

(4) XXVII
(a) 27
(b) 28
(c) 26
Answer:
(a) 27

Question 14.
Circle the correct Roman numeral of the following:
(1) 36
(a) XXVI
(b) XXXVI
(c) XXXXVI
Answers:
(b) XXXVI

(2) 27
(a) XXXVI
(b) XXVII
(c) XXVI
Answers:
(c) XXVII

(3) 18
(a) XVIII
(b) XVI
(c) XVII
Answers:
(a) XVIII

(4) 605
(a)DCV
(b)CDV
(c) XXXXXV
Answers:
(a) DCV

Question 15.
Put >, < or = in the box.
(1) CVI [          ] CLX
(2) CLXIX [          ] CLXXI
(3) XLIX [          ] XXXIX
(4) MMXVI [          ] MMXXVI
(5) LXX VII [          ] LVIII
(6) MCMXL [          ] MCMXLV
Answers:
(1) <
(2) <
(3) >
(4) <
(5) >
(6) <