NCERT Solutions for Class 5 Maths (Math Magic) Chapter 10 Tenths and Hundredths
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Book Name: Math Magic
Subject: Maths
Chapter Number: 10
Chapter Name: Tenths and Hundredths
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Book Name: Math Magic
Subject: Maths
Chapter Number: 10
Chapter Name: Tenths and Hundredths
You can also bookmark this page by clicking + Save to Library icon and refer to these NCERT Solutions anytime from your account. More Detail
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Page 1
NCERT
SOLUTIONS
CLASS - 5th
aglase .co
SOLUTIONS
CLASS - 5th
aglase .co
Page 2
Class : 5th
Subject : Maths
Chapter : 10
Chapter Name : Tenths And Hundredths
Q1 What was the length of the smallest pencil you have used?
Answer. The Length of the Smallest Pencil Which I Used was 7cm.
Page : 134 , Block Name : Tenths And Hundredths
Q2 How long is this pencil? Guess __ cm. Measure it using a scale. How good is your guess?
Answer. I Guess it is 4 cm.
Page : 134 , Block Name : Tenths And Hundredths
Q3 What is the length of this pencil? _______ mm. What is its length in centimeters?
Answer.
The Length of given Pencil is 6mm .
6M M
In cm =
10
Page : 135 , Block Name : Tenths And Hundredths
Q4 Have you seen frogs? Where? How many different types of frogs have you seen? Are all the
frogs of the same length? Here are two interesting examples.
Answer. Yes, I have seen frogs. I have seen in ponds. I have seen only single types of frog. I think
all frogs are not in the same length.
Page : 135 , Block Name : Tenths And Hundredths
Subject : Maths
Chapter : 10
Chapter Name : Tenths And Hundredths
Q1 What was the length of the smallest pencil you have used?
Answer. The Length of the Smallest Pencil Which I Used was 7cm.
Page : 134 , Block Name : Tenths And Hundredths
Q2 How long is this pencil? Guess __ cm. Measure it using a scale. How good is your guess?
Answer. I Guess it is 4 cm.
Page : 134 , Block Name : Tenths And Hundredths
Q3 What is the length of this pencil? _______ mm. What is its length in centimeters?
Answer.
The Length of given Pencil is 6mm .
6M M
In cm =
10
Page : 135 , Block Name : Tenths And Hundredths
Q4 Have you seen frogs? Where? How many different types of frogs have you seen? Are all the
frogs of the same length? Here are two interesting examples.
Answer. Yes, I have seen frogs. I have seen in ponds. I have seen only single types of frog. I think
all frogs are not in the same length.
Page : 135 , Block Name : Tenths And Hundredths
Page 3
Q5 What does 0.9 cm mean? It is the same as ____ millimeters. We can also say this is nine-tenths
of a cm. Right?
Answer. 0.9 cm = 9 mm
Yes, it is nine tenth of a cm.
Page : 135 , Block Name : Tenths And Hundredths
Q6 So, 30.5 cm is the same as ____ cm and ____ millimeter?
Answer. 30.5 cm is the same as 30 cm and 5 millimeters.
Page : 135 , Block Name : Tenths And Hundredths
Q7 About how many of the big frogs will t on the 1m scale?
1m =100cm.
Answer.
100/30 = 33.333 …
Hence, we can say that there are 3 or 4 frogs can t on 1 m scale.
Page : 135 , Block Name : Tenths And Hundredths
Q8 If they sit in a straight line about how many of the small frogs will cover 1m?
Answer. 100 cm = 1000 mm.
1000
= 111.111 … . .
9
Hence, there can 111 frogs sit.
Page : 135 , Block Name : Tenths And Hundredths
Q1 Length of the nail — 2 cm and ___ mm or 2. ___ cm.
Answer. 2 cm, 9 mm, and 2.9 cm.
Page : 135 , Block Name : Practice Time
Q2
The length of this lady's nger (bhindi) is _____ cm and _____ mm. We can also write it as ______ cm.
Answer. The length of the lady’s nger is 8.3 cm
of a cm. Right?
Answer. 0.9 cm = 9 mm
Yes, it is nine tenth of a cm.
Page : 135 , Block Name : Tenths And Hundredths
Q6 So, 30.5 cm is the same as ____ cm and ____ millimeter?
Answer. 30.5 cm is the same as 30 cm and 5 millimeters.
Page : 135 , Block Name : Tenths And Hundredths
Q7 About how many of the big frogs will t on the 1m scale?
1m =100cm.
Answer.
100/30 = 33.333 …
Hence, we can say that there are 3 or 4 frogs can t on 1 m scale.
Page : 135 , Block Name : Tenths And Hundredths
Q8 If they sit in a straight line about how many of the small frogs will cover 1m?
Answer. 100 cm = 1000 mm.
1000
= 111.111 … . .
9
Hence, there can 111 frogs sit.
Page : 135 , Block Name : Tenths And Hundredths
Q1 Length of the nail — 2 cm and ___ mm or 2. ___ cm.
Answer. 2 cm, 9 mm, and 2.9 cm.
Page : 135 , Block Name : Practice Time
Q2
The length of this lady's nger (bhindi) is _____ cm and _____ mm. We can also write it as ______ cm.
Answer. The length of the lady’s nger is 8.3 cm
Page 4
Page : 136 , Block Name : Practice Time
Q1 Which line is longer? A or B? Measure each line and write how long it is in centimeters. How
good is your guess?
Answer. Line B is longer than A.
A = 4.6 cm.
B = 4.7 cm.
Page : 137 , Block Name : Our Eyes Get Confused?
Q2 Which line is longer? C or D? Measure each line. How good is your guess?
Answer. Line C is longer then D. Both lines are equal measures.
Page : 137 , Block Name : Our Eyes Get Confused?
Q1 Guess whose tail is the longest. Now measure the tails. How good is your guess?
Answer. The monkey’s tail is the longest.
Lizard : 1.6 cm.
Rat : 1.4 cm.
Cat : 1.3 cm.
Puppy : 1 cm.
Monkey: 2.4 cm.
Pig : 1 cm.
Page : 138 , Block Name : Whose Tail Is The Longest?
Q1 What is the length of a 100 rupee note? Guess. Now measure it using a scale.
Answer. I Guess the length of a 100 rupee note is 15 cm long. But its correct measure is 15.5 cm
long.
Page : 138 , Block Name : The Longest Rupee Notes?
Q1 Which line is longer? A or B? Measure each line and write how long it is in centimeters. How
good is your guess?
Answer. Line B is longer than A.
A = 4.6 cm.
B = 4.7 cm.
Page : 137 , Block Name : Our Eyes Get Confused?
Q2 Which line is longer? C or D? Measure each line. How good is your guess?
Answer. Line C is longer then D. Both lines are equal measures.
Page : 137 , Block Name : Our Eyes Get Confused?
Q1 Guess whose tail is the longest. Now measure the tails. How good is your guess?
Answer. The monkey’s tail is the longest.
Lizard : 1.6 cm.
Rat : 1.4 cm.
Cat : 1.3 cm.
Puppy : 1 cm.
Monkey: 2.4 cm.
Pig : 1 cm.
Page : 138 , Block Name : Whose Tail Is The Longest?
Q1 What is the length of a 100 rupee note? Guess. Now measure it using a scale.
Answer. I Guess the length of a 100 rupee note is 15 cm long. But its correct measure is 15.5 cm
long.
Page : 138 , Block Name : The Longest Rupee Notes?
Page 5
Q1 How many paise does a matchbox cost?
Answer. 50 Paise.
Page : 139 , Block Name : At The Market
Q2 How many matchboxes can be got for Rs 2.50?
Answer. Five
Page : 139 , Block Name : At The Market
Q3 How many rupees does the soap cost?
Answer. R.8.75.
Page : 139 , Block Name : At The Market
Q4 Arun wanted to buy a soap. He has a ve-rupee coin, 2 one-rupee coins and, 4 half-rupee
coins. Write in rupees what money he will get back.
The total money Arun has.
Answer. 5 × 1 = Rs. 5
1 × 2 = Rs. 2
=Rs.2
4X0.5
Rs.9
Price of soap = Rs. 8.75
Arun will get back = 9 − 8.75
= 0.25Rs
Page : 139 , Block Name : At The Market
Q5 a)An Egg costs two and a half rupees. How much will one and a half dozen cost?
b) How many pens can Kannan buy? How much money is left?
Answer. a) Cost of an egg = Rs. 2.50
Cost of 1 and half dozen egg = 18 X 2.50
= Rs. 45
Remaining Money = Rs. 60 – 45
= Rs. 45.
Page : 139 , Block Name : At The Market
Q6 The price of two pens is Rs _____. Can she buy two pens?
Answer. 50 Paise.
Page : 139 , Block Name : At The Market
Q2 How many matchboxes can be got for Rs 2.50?
Answer. Five
Page : 139 , Block Name : At The Market
Q3 How many rupees does the soap cost?
Answer. R.8.75.
Page : 139 , Block Name : At The Market
Q4 Arun wanted to buy a soap. He has a ve-rupee coin, 2 one-rupee coins and, 4 half-rupee
coins. Write in rupees what money he will get back.
The total money Arun has.
Answer. 5 × 1 = Rs. 5
1 × 2 = Rs. 2
=Rs.2
4X0.5
Rs.9
Price of soap = Rs. 8.75
Arun will get back = 9 − 8.75
= 0.25Rs
Page : 139 , Block Name : At The Market
Q5 a)An Egg costs two and a half rupees. How much will one and a half dozen cost?
b) How many pens can Kannan buy? How much money is left?
Answer. a) Cost of an egg = Rs. 2.50
Cost of 1 and half dozen egg = 18 X 2.50
= Rs. 45
Remaining Money = Rs. 60 – 45
= Rs. 45.
Page : 139 , Block Name : At The Market
Q6 The price of two pens is Rs _____. Can she buy two pens?
Page 6
Answer. Yes.
Page : 139 , Block Name : At The Market
Q1 What part of this sheet is colored blue? ___/10
Answer. 1
10
Part is blue.
Page : 140 , Block Name : Colourful Design
Q2 What part of the sheet is green?
Answer. 3
10
Page : 140 , Block Name : Colourful Design
Q3 Which colour covers 0.2 of the sheet?
Answer. Yellow
Page : 140 , Block Name : Colourful Design
Q4 Now look at the second sheet. Each strip is divided into 10 equal boxes. How many boxes are
there in all?
Answer. 100
Page : 140 , Block Name : Colourful Design
Q5 Is each box 1/100 part of the sheet?
Answer. Yes
Page : 140 , Block Name : Colourful Design
Q6 How many blue boxes are there?
Answer. 10 blue boxes.
Page : 140 , Block Name : Colourful Design
Q7 Is blue equal to 10/100 of the sheet? We saw that blue is also equal to 1/10 of the sheet. We
wrote it as 0.1 of the sheet.
Page : 139 , Block Name : At The Market
Q1 What part of this sheet is colored blue? ___/10
Answer. 1
10
Part is blue.
Page : 140 , Block Name : Colourful Design
Q2 What part of the sheet is green?
Answer. 3
10
Page : 140 , Block Name : Colourful Design
Q3 Which colour covers 0.2 of the sheet?
Answer. Yellow
Page : 140 , Block Name : Colourful Design
Q4 Now look at the second sheet. Each strip is divided into 10 equal boxes. How many boxes are
there in all?
Answer. 100
Page : 140 , Block Name : Colourful Design
Q5 Is each box 1/100 part of the sheet?
Answer. Yes
Page : 140 , Block Name : Colourful Design
Q6 How many blue boxes are there?
Answer. 10 blue boxes.
Page : 140 , Block Name : Colourful Design
Q7 Is blue equal to 10/100 of the sheet? We saw that blue is also equal to 1/10 of the sheet. We
wrote it as 0.1 of the sheet.
Page 7
Answer. yes
Page : 140 , Block Name : Colourful Design
Q8 Can we write ten paise as 0.1 of a rupee?
Answer. Yes, we can write
Page : 141 , Block Name : Colourful Design
Q9 How many boxes are red? What part of the sheet is this? 15/____
Answer. 15 boxes part
15
100
Page : 141 , Block Name : Colourful Design
Q10 Can we also write it as 0.15 of the sheet?
Answer. yes
Page : 141 , Block Name : Colourful Design
Q11 Now 3/100 of the sheet is black. We can say 0.____ sheet is black.
Answer. = 0.03
3
100
Page : 141 , Block Name : Colourful Design
Q12 How many white boxes are there on the sheet?
Answer. 22 boxes.
Page : 141 , Block Name : Colourful Design
Q13 What part of the second sheet is white? ____
Answer. 22
100
Page : 141 , Block Name : Colourful Design
Q14 how far did Anu jump? ___ m and ___ cm
Answer. 3.05 m and 3.5 cm.
Page : 140 , Block Name : Colourful Design
Q8 Can we write ten paise as 0.1 of a rupee?
Answer. Yes, we can write
Page : 141 , Block Name : Colourful Design
Q9 How many boxes are red? What part of the sheet is this? 15/____
Answer. 15 boxes part
15
100
Page : 141 , Block Name : Colourful Design
Q10 Can we also write it as 0.15 of the sheet?
Answer. yes
Page : 141 , Block Name : Colourful Design
Q11 Now 3/100 of the sheet is black. We can say 0.____ sheet is black.
Answer. = 0.03
3
100
Page : 141 , Block Name : Colourful Design
Q12 How many white boxes are there on the sheet?
Answer. 22 boxes.
Page : 141 , Block Name : Colourful Design
Q13 What part of the second sheet is white? ____
Answer. 22
100
Page : 141 , Block Name : Colourful Design
Q14 how far did Anu jump? ___ m and ___ cm
Answer. 3.05 m and 3.5 cm.
Page 8
Page : 141 , Block Name : Colourful Design
Q1 Who is the winner in the long jump?
Answer. Rehana.
Page : 141 , Block Name : Sports Day
Q2 Write the names of the I, II and III winners on this stand.
Answer. I – Rehana
II – Meena
III – Teena
Page : 142 , Block Name : Sports Day
Q1
Answer. 3.45 m.
0.99 m.
1.05 m.
Page : 142 , Block Name : Write In Metres
Q1 A) After breathing out 1.52m
B) On taking a deep breath 1.82m
Answer. Different in size: 1.82 m – 1.52 m = 0.30 m
Page : 142 , Block Name : How Big Can You Get
Q2 What is Dinesh’s height in meters? _____ m _____ cm.
Answer. 2 m 45 cm.
= 200 cm – 45 cm
= 1 m 55 cm.
Page : 142 , Block Name : How Big Can You Get
Q1 Have you seen any notes or coins used in any other country?
Q1 Who is the winner in the long jump?
Answer. Rehana.
Page : 141 , Block Name : Sports Day
Q2 Write the names of the I, II and III winners on this stand.
Answer. I – Rehana
II – Meena
III – Teena
Page : 142 , Block Name : Sports Day
Q1
Answer. 3.45 m.
0.99 m.
1.05 m.
Page : 142 , Block Name : Write In Metres
Q1 A) After breathing out 1.52m
B) On taking a deep breath 1.82m
Answer. Different in size: 1.82 m – 1.52 m = 0.30 m
Page : 142 , Block Name : How Big Can You Get
Q2 What is Dinesh’s height in meters? _____ m _____ cm.
Answer. 2 m 45 cm.
= 200 cm – 45 cm
= 1 m 55 cm.
Page : 142 , Block Name : How Big Can You Get
Q1 Have you seen any notes or coins used in any other country?
Page 9
Answer. yes, I have seen the notes and coins of UAE.
Page : 143 , Block Name : Practice Time
Q2 The money of which country will cost the most in Indian Rupees?
Answer. The money of England will cost the most in Indian Rupees.
Page : 143 , Block Name : Practice Time
Q3 Mithun’s uncle in America had sent him 10 US dollars as a gift. Mithun used 350 rupees for a
school trip. How much money was left with him?
Answer. Cost of 10 dollars in Indian rupees
= 10X39.70
=397
Money left =397 − 350
= 47Rs
Page : 143 , Block Name : Practice Time
Q4 Majeed’s father is working in Saudi Arabia. He gets 1000 Saudi Riyal as salary. Arun’s father
who is working in Sri Lanka gets 2000 Sri Lankan Rupees. Who gets more Indian rupees as salary?
Answer. Majeed’s father salary = 1000 X 10.52.
= 10520 Rupees.
Arun’s father salary = 2000 X 0.37
= 740 Rupees.
Hence, Majeed’s father earns more.
Page : 144 , Block Name : Practice Time
Q5 Leena’s aunty brought a present for her from China. It cost 30 Yuan. Find what it costs in
Indian rupees.
Answer. 1 yarn = Rs. 5.50
30 yarn = 5.50 X 30
= 165 Rupees.
Astha wants some Hong Kong Dollar and Won.
Page : 144 , Block Name : Practice Time
Q6 Astha wants some Hong Kong Dollars and Won.
Page : 143 , Block Name : Practice Time
Q2 The money of which country will cost the most in Indian Rupees?
Answer. The money of England will cost the most in Indian Rupees.
Page : 143 , Block Name : Practice Time
Q3 Mithun’s uncle in America had sent him 10 US dollars as a gift. Mithun used 350 rupees for a
school trip. How much money was left with him?
Answer. Cost of 10 dollars in Indian rupees
= 10X39.70
=397
Money left =397 − 350
= 47Rs
Page : 143 , Block Name : Practice Time
Q4 Majeed’s father is working in Saudi Arabia. He gets 1000 Saudi Riyal as salary. Arun’s father
who is working in Sri Lanka gets 2000 Sri Lankan Rupees. Who gets more Indian rupees as salary?
Answer. Majeed’s father salary = 1000 X 10.52.
= 10520 Rupees.
Arun’s father salary = 2000 X 0.37
= 740 Rupees.
Hence, Majeed’s father earns more.
Page : 144 , Block Name : Practice Time
Q5 Leena’s aunty brought a present for her from China. It cost 30 Yuan. Find what it costs in
Indian rupees.
Answer. 1 yarn = Rs. 5.50
30 yarn = 5.50 X 30
= 165 Rupees.
Astha wants some Hong Kong Dollar and Won.
Page : 144 , Block Name : Practice Time
Q6 Astha wants some Hong Kong Dollars and Won.
Page 10
1) How many Won can she change for Rs 4? For Rs 400?
2) How many Hong Kong Dollars can she change for Rs 508?
Answer. 1) 1 won = Rs. - 0.04
Hence, 100 won = 100 X 0.04 = Rs. 4
2) 1 HK Dollar = Rs.5.10
Hence, Rs. 508 = 508/5.10 = 99.61 HK Dollars.
Page : 144 , Block Name : Practice Time
Q1 Which place had the highest temperature at 3 pm? Which place is the coolest at that time?
Answer. Mumbai had the highest temperature at 3 pm and Srinagar had the lowest temperature at
the same time.
Page : 145 , Block Name : Which City Is Cool?
Q2 How much higher is the temperature in Mumbai from that in Srinagar?
Answer. 35.1 – 8.1*C
= 27.0*C
Page : 145 , Block Name : Which City Is Cool?
Q3 How many degrees will the temperature need to rise for it to reach 40º C in
Thiruvananthapuram?
Answer. 40*C – 33.5*C = 6.5*C
Page : 145 , Block Name : Which City Is Cool?
Q4 How much lower is the temperature of Kolkata from that in Chennai?
Answer. 29.9*C – 26.6*C = 3.3*C
The temperature in these cities was also noted at 3 am on the same day. Look at the table and
answer the questions
Page : 145 , Block Name : Which City Is Cool?
Q5 The temperature in these cities was also noted at 3 am on the same day. Look at the table and
answer the questions.
a) Which place had the lowest temperature at 3 am? Imagine yourself to be there and describe
how it would feel.
b) What is the difference between the temperatures at 3 pm and 3 am in Chennai? In Bhopal?
2) How many Hong Kong Dollars can she change for Rs 508?
Answer. 1) 1 won = Rs. - 0.04
Hence, 100 won = 100 X 0.04 = Rs. 4
2) 1 HK Dollar = Rs.5.10
Hence, Rs. 508 = 508/5.10 = 99.61 HK Dollars.
Page : 144 , Block Name : Practice Time
Q1 Which place had the highest temperature at 3 pm? Which place is the coolest at that time?
Answer. Mumbai had the highest temperature at 3 pm and Srinagar had the lowest temperature at
the same time.
Page : 145 , Block Name : Which City Is Cool?
Q2 How much higher is the temperature in Mumbai from that in Srinagar?
Answer. 35.1 – 8.1*C
= 27.0*C
Page : 145 , Block Name : Which City Is Cool?
Q3 How many degrees will the temperature need to rise for it to reach 40º C in
Thiruvananthapuram?
Answer. 40*C – 33.5*C = 6.5*C
Page : 145 , Block Name : Which City Is Cool?
Q4 How much lower is the temperature of Kolkata from that in Chennai?
Answer. 29.9*C – 26.6*C = 3.3*C
The temperature in these cities was also noted at 3 am on the same day. Look at the table and
answer the questions
Page : 145 , Block Name : Which City Is Cool?
Q5 The temperature in these cities was also noted at 3 am on the same day. Look at the table and
answer the questions.
a) Which place had the lowest temperature at 3 am? Imagine yourself to be there and describe
how it would feel.
b) What is the difference between the temperatures at 3 pm and 3 am in Chennai? In Bhopal?
Page 11
Answer. a) Srinagar. We feel cold.
b) Chennai = 29.9*C – 21.1*C
= 8.8*C
Bhopal = 25.9*C – 9.8*C
= 16.1*C
Page : 145 , Block Name : Which City Is Cool?
b) Chennai = 29.9*C – 21.1*C
= 8.8*C
Bhopal = 25.9*C – 9.8*C
= 16.1*C
Page : 145 , Block Name : Which City Is Cool?
Document Details
| Board / Org | NCERT |
| Exam | Class 5 |
| Type | Solution |
| Pages | 11 |
| Updated | 30 Apr 2026 |