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Number Line Prime Class 6 Solutions Chapter 2 Knowing Our Numbers
Welcome to NCTB Solutions. Here with this post we are going to help 6th class students for the Solutions of Number Line Prime Class 6 Math Book, Chapter 2, Knowing Our Numbers. Here students can easily find step by step solutions of all the problems for Knowing Our Numbers, Exercise 2A, 2B, 2C, 2D, 2E and 2F Also here our mathematics teacher’s are solved all the problems with easily understandable methods with proper guidance so that all the students can understand easily. Here in this post students will get chapter 2 solutions. Here in this post all the solutions are based on latest Syllabus.
Knowing Our Numbers Exercise 2A Solution :
Question number – (1)
Solution :
(a) 8,63,152
(b) 3,92,689
(c) 9,25,064
(d) 5,69,03,275
Question number – (2)
Solution :
(a) Thirty four thousand five hundred sixty six.
(b) Nine lakh two thousand three hundred forty one.
(c) Sixty six lakh eighty nine thousand nine hundred four.
Question number – (3)
Solution :
(a) 20,73,401
(b) 4,58,01,212
(c) 99,62,44,687
Question number – (4)
Solution :
(a) Place Value – 800
(b) Place Value – 2,00,000
(c) Place Value – 60,000
Question number – (5)
Solution :
(a) Face Value = 4
(b) Face Value = 8
(c) Face Value = 6
Question no – (6)
Solution :
(a) 20,00,000 + 900000 + 40000 + 8000 +20 + 8
(b) 30000000 + 8000000 + 400000 + 60000 + 4000 + 700 + 30 + 9
(c) 20000000 + 8000000 + 300000 + 80000 + 70 + 4
Question no – (7)
Solution :
(a) 50,63,156
(b) 8,42,838
(c) 10,30,50,475
Question number – (8)
Solution :
Place value of first 6 → 60,00000
Place value of second → + 600
—————————————————–
60,00,600
Question number – (9)
Solution :
Place value of first 9 → 900000
Place value of second → – 90
—————————————————–
8,99,910
Question number – (10)
Solution :
Face value of the digit at the tens place → 0
Place value of 5 → 500000
So 5,00,000 × 0 = 0
Knowing Our Numbers Exercise 2B Solution :
Question no – (1)
Solution :
(a) 3,67,897 – 1
= 3,67,878
(b) 23,90,189 – 1
= 23,90,188
(c) 9,13,47,000 – 1
= 9,13,46,999
Question no – (2)
Solution :
(a) 3,78,908 + 1
= 3,78,909
(b) 41,099 + 1
= 41,100
(c) 81,30,000 + 1
= 81,30,001
Question no – (3)
Solution :
(a) 27,984 < 64,378
(b) 46,52,798 > 46,20,089
(c) 83,78,395 > 83,78,095
Question number – (4)
Solution :
(a) 45,372 < 47,980 < 1,23,457< 3,87,018
(b) 9,038 < 9074 < 9,526 < 92,34,517
(c) 23,468 < 69,805 < 92,781 < 3,56,492
Question number – (5)
Solution :
(a) 8,79,605> 7,65,902 > 54,723 > 32,415
(b) 75,689 > 21,345 > 6,584 > 3,479
(c) 4,32,687> 75,896 > 48,672 > 658
Question number – (6)
Solution :
Smallest number = 10,34,579
Greatest number = 97,54,310
Question number – (7)
Solution :
Smallest number = 1,02,346
Greatest number = 9,64,321
Question number – (8)
Solution :
Smallest number = 1,00,457
Greatest number = 7,75,410
Knowing Our Numbers Exercise 2C Solution :
Question number – (1)
Solution :
(a) 4,517,301
(b) 9,340,001
(c) 70,707,971
(d) 8,579,832
Question no – (2)
Solution :
(a) 97,53,105
(b) 73,0585,305
(c) 85,00,002
(d) 6,782, 506
(e) 888, 800,088
(f) 100,200,005
Question number – (3)
Solution :
(a) 897, 686, 824
(b) 4900,70,100
Question no – (4)
Solution :
(a) 10
(b) 10
(c) 10
Knowing Our Numbers Exercise 2D Solution :
Question no – (1)
Solution :
(1) 450 < 150 cm
(2) 420 km < 4200 km
(3) 1300 mm > 13 mm
(4) 2800,000 mg > 28 mg
(5) 250 g < 2.5 kg
(6) 3.45 kg = 3.45 kg
(7) 3L > 3000 mL
(8) 2300 L < 23,000 L
(9) 9L = 9L
(10) 12 kg 20g < 12 kg 200g
Knowing Our Numbers Exercise 2E Solution :
Question number – (1)
Solution :
(a) Total Population =
9, 24, 09, 540
3, 78, 49, 075
7, 65, 85, 372
——————————–
20,68,43,987
Question number – (2)
Solution :
Hours need to quality =
4,00,000
– 3, 46,928
——————————–
55072
——————————–
53,072 km
Question number – (3)
Solution :
Total number of votes
– 75, 95, 394
And B get votes together
23, 95, 710
+ 3, 21, 001
——————————–
27, 16, 711
Question number – (4)
Solution :
Total number of books in both libraries
48, 473
+ 73, 602
——————————–
1, 22, 075
Senior libraries have
73, 602
– 48, 473
——————————–
25, 129 more books
Question number – (5)
Solution :
Required number of blubs
= 15,240 × 112
= 17, 18, 080
Question number – (6)
Solution :
Price of 110 thali cost
= 110 × 425
= 46, 750
Price of 154 thali cost
= 154 × 215
= 33, 110
——————————–
= 79, 860
Question number – (7)
Solution :
= 2550 × 275
= 7, 01, 250
There are 7,01,250 oranges packed in all
Question number – (8)
Solution :
Number of groups there
= 62,910 ÷ 30
= 2,097
Question number – (9)
Solution :
Total pages = 4100
Pages required for each subject if she has to divide them equally
= 4100 ÷ 5
= 820 pages
Question number – (10)
Solution :
Total Bonus
= Rs 24, 78, 900
No of employees
= 80
So, Money each employee get
= 24, 78, 900 ÷ 80
= 30980, 25
Knowing Our Numbers Exercise 2F Solution :
Question number – (1)
Solution :
(a) (Tens)
= 40, 60, 50, 60, 10
(b) (Hundred)
= 900, 100, 200, 400, 800
(c) (Thousand)
= 10,000, 8,000, 3,000, 1,000, 6,000
Question number – (2)
Solution :
(a) 80,000
(b) 6, 80,000
(c) 8, 60, 000
(d) 20, 000
Question number – (3)
Solution :
(a) 45, 00, 000
(b) 6, 00, 000
(c) 54, 00, 000
(d) 3, 00, 000
Question number – (4)
Solution :
(a) Actual sum = 34, 253 + 5524 = 39,777
∴ Round of sum = 34, 000 + 6000 = 40,000
(b) Actual sum = 2507 + 3223 = 5730
∴ Round of sum = 3000 + 3000 = 6000
(c) Actual sum = 19,887 + 43,501 = 63,388
∴ Round of sum = 20,000 + 44,000 = 64,000
(d) Actual sum = 68,283 + 1843 = 70, 126
∴ Round of sum = 68,000 + 2000 = 70,000
Question number – (5)
Solution :
(a) Actual Difference = 4215
∴ Round off Difference = 4200
(b) Actual Difference = 12, 284
∴ Round of Difference = 12, 300
(c) Actual Difference = 41, 800
∴ Round off Difference = 41, 800
(d) Actual Difference = 7740
∴ Round off Difference = 7800
Question number – (6)
Solution :
(a) 9000 × 100 = 9,00,000
(b) 3000 × 10 = 30,000
(c) 4000 × 300 = 12,00,000
(d) 2000 × 40 = 80,000
Question number – (7)
Solution :
(a) 4000 ÷ 50 = 80
(b) 6000 ÷ 60 = 100
(c) 6000 ÷ 300 = 20
(c) 900 ÷ 20 = 45
Question number – (8)
Solution :
Number of Rows = 345
Total number flowers
= 345 × 48
So, estimate number of flowers
= 300 × 50
= 15,000
Question number – (9)
Solution :
Manufactures on Monday
= 3, 42, 825
Manufactures on Tuesday
= 89,723
∴ Number of more toys Manufactures on Monday
= 3, 42, 825 – 89723
= 2, 53, 102
Round off to nearest hundred
= – 2, 53, 100
Chapter 2 Review Time Questions Solution :
Multiple Choice Question :
Question no – (1)
Solution :
Correct option – (b)
3,35,021,120
Question no – (2)
Solution :
= 67, 62, 100
Place value = 100
Face value = 1
Total = 101
Hence, the correct option – (b)
Question no – (3)
Solution :
Correct option – (b)
13,04,907
Question no – (4)
Solution :
Correct option – (b)
1,68,73,683
Question no – (5)
Solution :
Correct option – (c)
4,41,806
Question no – (6)
Solution :
Correct option – (b)
3089
Question no – (7)
Solution :
Correct option – (a)
9830
Question no – (8)
Solution :
Correct option – (c)
12,000
Subjective Questions :
Question no – (1)
Solution :
Place value of first 5 – 500
Place value of second
= 5 – 5
Sum = 505
Question no – (2)
Solution :
(a) 6, 02, 81, 546 – 6,00,00,000 + 80,000 + 10,000 + 500 + 40 + 6
(b) 1,8217,364 – 1,00,00,000 + 80,00,000 + 2,00,000 + 10,000 + 7000 + 300 + 60 + 4
Question no – (3)
Solution :
∴ Successor is = 9,37,83,768 + 24, 45, 677
∴ Predecessor is = 937838766 – 24,45,675
Question no – (4)
Solution :
Greatest Number – 7531
Smallest Number – 1357
Question no – (5)
Solution :
(a) 3, 52, 000 (nearest hundred)
(b) 1, 20, 000 (nearest the thousand)
Question no – (6)
Solution :
(a) 4,91,350 – 4, 01,000
(b) 22, 710 – 23,000
(c) 4,81,609 – 4, 82, 000
(d) 3,65,035 – 3,65,000
Question no – (7)
Solution :
(a) 2,00,00 ÷ 200
= 100
(b) 9000 × 100
= 9,00,000
(c) 20,000 × 50
= 1,00,000
(d) 20,000 ÷ 200
= 100
Next Chapter Solution :
👉 Chapter 3 👈