NCERT Solutions - Fun With Numbers

NCERT Solutions for Class 8 Maths Chapter 2 - Fun With Numbers

Page No - 13

Radhika, Gauri, Vicky, Indra and Sunil were collecting Imil (tamarind) seeds.

(a) ____ collected the most seeds.
(b) Sunil will collect _____ more seeds to be equal to Vicky.
(c) If Radhika gets 6 more seeds, she will have_____
(d) How many children have more than 40 seeds? _____
(e) ______ needs 3 more seeds to have 50.
(f) Sunil has 2 seeds less than 40 and ____  has 2 seeds more than 40.

Ans:
(a) Indra  collected the most seeds.
(b) Seeds collected by Vicky = 42 Seeds collected by Sunil = 38 Number of more seeds Sunil should collect to be equal to Vicky = 42 − 38 = 4
(c) Number of seeds with Radhika = 24 If Radhika gets 6 more seeds, the total number of seeds with her will be 24 + 6 = 30 If Radhika gets 6 more seeds, then she will have 30 seeds.
(d) 3 children have more than 40 seeds.
(e) Gauri has 47 seeds. So, if she collects 3 more seeds, then the total number of seeds with her will be 47 + 3 = 50.
(f) Sunil has 2 seeds less than 40 and Vicky has 2 seeds more than 40.

Page No - 15

Dhoni's Century
Ques 1: One-day match between India and South Africa in Guwahati ……… India batting first …….

Fill in blanks:
(a) Dhoni scored 96 +___ = runs.
Ans:
(a) Dhoni scored 96 +  6  = 102  runs.

Ques 2: How many runs do these players need to complete a century?

 Runs scored Runs needed to complete a century Player 1 93 ____ Player 2 97 ____ Player 3 89 ____ Player 4 99 ____

Ans:
Century = 100 run

 Runs scored Runs needed to complete a century Player 1 93 7 Player 2 97 3 Player 3 89 11 Player 4 99 1

Page No - 16

Fill in the Blanks:

Ans:

Century = 100 runs Double century = 2×100 = 200 runs
Triple century = 3×100 = 300 runs
Total runs = 206
Number of runs required to make 300 = 300 − 206 = 94
So, 94 more runs are required to make a triple century.

Page No - 17

Top ten Scores in the Cricket World Cup

 Player Score A.P.J. 128 A.S 100 C.K. 99 D.M. 162 K.S.P. 152 M.D. 178 P.K. 105 S. T. 141 T.P.K. 112 V.V.S. 127

(a) C.K. just missed his century. How many runs did he need to make a century?___
(b) _____and ____scored almost equal runs.
(c) ____ scored a complete century. no less, no more.
(d) Most runs scored by any batsman are ____
(e) _____ and _____ have a difference of just 1 run between them.
(f) ______ scored 2 more than one and a half century.

Ans:

(a) C.K. just missed his century. How many runs did he need to make a century? 1

(b) A.S., C.K. and V.V.S., A.P.J. scored almost equal runs.
(c) A.S. scored a complete century. no less, no more.
(d) Most runs scored by any batsman are 178 .
(e) A.S., C.K. and V.V.S., A.P.J.  have a difference of just 1 run between them.
(f) K.S.P. scored 2 more than one and a half century.

Page No - 18

Counting in 10’s

 10 110 310 ___ 20 ___ ___ 720 30 ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ 780 ___ 190 ___ ___ 100 200 400 ___

Ans:

 10 110 310 710 20 120 320 720 30 130 330 730 40 140 340 740 50 150 350 750 60 160 360 760 70 170 370 770 80 180 380 780 90 190 390 790 100 200 400 800

Counting in 50’s

 200 550 250 __ __ 650 350 __ __ 750 __ __ 500 850

(a) How far can you go like this?
(b) What is the biggest number you can call out? _______
Ans:

 200 550 250 600 300 650 350 700 400 750 450 800 500 850

(a) We can count endlessly, as there is no limit to counting the numbers in 50s.

(b) There will always be a bigger number than the previous number.

Page No - 19

Find these numbers in the above chart. Colour them:

Ans:

Page No - 21

Jumping Animals

Gabru, Bunny and Tarru are jumping all the way. Gabru jumps on every 7th square, Bunny on every 5th square, Tarru on every 4th square.
Gabru starts jumping from square number 90.
Bunny starts jumping from square number 99.
Tarru starts jumping from square number 106.
(a) Bunny’s tenth jump is on square number _________.
(b) Tarru’s tenth jump is on square number _________.
(c) Gabru’s tenth jump will be on square number ________.
(d) Gabru and Bunny both jump on squares 104 _________ and ________.
Find out:
(e) Tarru and Bunny jump on squares _______, _______, _______ and _______.
(f) Is there any square where all three of them jump? _______
(g) Guess who will finish in the least jumps? ________ In how many jumps? ________
Ans:

(a) Bunny is on square number 99. Bunny jumps on every 5th square. In a single jump, Bunny covers 5 steps. We have to count Bunny’s 10th jump. Number of steps Bunny covers in 10 jumps = 10×5 = 50
Thus, Square number reached by Bunny = 99 + 50 = 149
(b) Tarru is on square number 106. Tarru jumps on every 4th square. In a single jump, Tarru covers 4 steps. We have to count Tarru’s 10th jump. Number of steps Tarru covers in 10 jumps = 10 ×4 = 40
Thus, Square number reached by Tarru = 106 + 40 = 146
(c) Gabru is on square number 90. Gabru jumps on every 7th square. In a single jump, Gabru covers 7 steps. We have to count Gabru’s 10th jump. Number of steps Gabru covers in 10 jumps = 10 ×7 = 70 Thus, Square number reached by Gabru = 90 + 70 = 160
(d) Gabru and Bunny both jump on squares 104 to 114 and 109
(e) Tarru and Bunny jump on squares 114, 134, 154 and 174.
(g) Gabru will finish it in the least number of jumps, that is, 8.

Page No - 22

Class, Jump
Ques 1:
Jump 2 steps forward:
104, 106, 108, __,__ ,__ , __.
Jump 2 steps backward:
262, 260, 258, __, __,__ ,__ .
Jump 10 steps forward:
110, 120, 130,__ , __,__ ,__ .
Jump 10 steps backward: 200, 190, 180, __ ,__ , __,__ .
Continue the pattern: 550, 560, 570, __ , __ , __ ,__ .
910, 920, 930, 940,__ , __ ,__ , __.
209, 207, 205, __, __,__ ,__ .
401, 402, 403, __, __, __, __.
Ans:
Jump 2 steps forward: 104, 106, 108, 110, 112, 114, 116.
Jump 2 steps backward: 262, 260, 258, 256, 254, 252, 250.
Jump 10 steps forward: 110, 120, 130, 140, 150, 160, 170.
Jump 10 steps backward: 200, 190, 180, 170, 160, 150, 140.
Continue the pattern:
550, 560, 570, 580, 590, 600, 610.
910, 920, 930, 940, 950, 960, 970, 980.
209, 207, 205, 203, 201, 199, 197.
401, 402, 403, 404, 405, 406, 407.

Page No - 23

Lazy Crazy Shop
Find out how many packets of tens, hundreds and loose items each animal will take. Fill in the blanks.

Ans:

Page No - 24

Lazy Crazy also has a crazy way of taking money. He takes only in  notes,  notes and  coins.
Now find out how they will pay him for what they have taken.
(a)

(b)

(c)

(d)

Ans:
(a) Rs 420 = Rs 100 + Rs 100 + Rs 100 + Rs 100 + Rs 10 + Rs 10
Four hundred-rupee notes and two ten-rupee notes

(b) Rs 143 = Rs 100 + Rs 10 + Rs 10 + Rs 10 + Rs 10 + Re 1 + Re 1 + Re 1
One hundred-rupee note, four ten-rupee notes and three one-rupee coins
(c) Rs 242 = Rs 100 + Rs 100 + Rs 10 + Rs 10 + Rs 10 + Rs 10 + Re 1 + Re 1
Two hundred-rupee notes, four ten-rupee notes and two one-rupee coins
(d) Rs 55 = Rs 10 + Rs 10 + Rs 10 + Rs 10 + Rs 10 + Re 1 + Re 1 + Re 1+ Re 1 + Re 1 Five ten-rupee notes and five one-rupee coins

Who am I? Match with the number.

Ans:

Page No - 25

How Many are these?

Ans:

Page No - 27

Which cards will I have in my pocket if I have counted up to…

Ans:

Page No - 28

When I had cards in my pocket, I knew I had counted 20 stars. Now you tell me the number of stars counted in each case. Write the answer in the blank space.

Ans:

The document NCERT Solutions for Class 8 Maths Chapter 2 - Fun With Numbers is a part of the Class 3 Course Mathematics for Class 3: NCERT.
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FAQs on NCERT Solutions for Class 8 Maths Chapter 2 - Fun With Numbers

 1. What are NCERT Solutions?
Ans. NCERT Solutions are comprehensive and detailed answers to the questions provided in the NCERT textbooks. These solutions are prepared by subject experts and help students understand and solve the questions in a step-by-step manner.
 2. How can NCERT Solutions for Fun With Numbers help students?
Ans. NCERT Solutions for Fun With Numbers provide detailed explanations and solutions to the exercises and problems in the textbook. These solutions help students understand the concepts better and improve their problem-solving skills. They also serve as a useful resource for exam preparation.
Ans. Yes, NCERT Solutions for Fun With Numbers are available for free. They can be accessed online or downloaded in PDF format from various educational websites and platforms. Students can use these solutions to practice and revise the concepts taught in the textbook.
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Ans. Yes, NCERT Solutions for Fun With Numbers can be effectively used for self-study. These solutions provide a detailed explanation of each question and help students grasp the concepts easily. By solving the problems using these solutions, students can assess their understanding and identify areas that need improvement.
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Ans. Yes, NCERT Solutions for Fun With Numbers are highly beneficial for exam preparation. These solutions cover all the topics and exercises from the textbook, ensuring that students have a thorough understanding of the subject. By practicing with these solutions, students can build their confidence and improve their performance in exams.

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