Page 308 - Start Up Mathematics_6

Some NCERT Textbook Questions
Chapter 1
4. (a) (b)
1. 7,707 tickets 2. 3,020 runs
3. ` 6,86,659, second week, ` 1,14,877
4. ` 30,592 5. 65,124 6. 180 glasses
Four No line of symmetry 7. (a) 5,000; 5,090 (b) 61,100; 61,130
(c) 7,800; 7,840 (d) 4,40,900; 4,40,980
Chapter 2
1. (a) 5,940 (b) 54,27,900 (c) 81,26,500 (d) 1,92,25,000
(c) (d) 2. ` 1,500 3. (i) (c), (ii) (a), (iii) (b)
4. (a) 5. Both of them will be ‘1’
6. 123456 × 8 + 6 = 987654, 1234567 × 8 + 7 = 9876543
Three Three Chapter 3
1. (i) (b), (ii) (d), (iii) (a), (iv) (f), (v) (e)
2. 9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99
3. 17 and 71, 37 and 73, 79 and 97
5. 4. Prime numbers: 2, 3, 5, 7, 11, 13, 17, 19
Composite numbers: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18
5. (a) 3 + 41 (b) 5 + 31 (c) 5 + 19 (d) 5 + 13
(This could be one of the ways. There can be other ways
also.)
Exemplar Problems
6. (a) 2 and 8 (b) 0 and 9 7. (a) 8 (b) 6
1. b 2. a 3. False 4. equal 5. angle; 80° 8. (a) 60
6. 0; 8 7. 5 8. Line Segment; 5 cm
9. L,G and R 6 10

Chapter 14 2 3 5 2

Exercise 14.1 (b) 60
3. Rectangle 30 2
Exercise 14.2 10 3
3. The two parts are equal and each measures 4.6 cm 2 5
4. Centre of the circle 9. No, 1 10. 75 cm 11. 95
5. Yes
Chapter 4
Review Exercises 1. Open: (a), (c); Closed: (b), (d), (e)
Multiple Choice Questions 2. (a) Yes (b) Yes
1. b 2. a 3. c 4. a 5. c 6. d 3. (a) O (b) OA, OB, OC (c) AC (d) ED (e) O, P
(f) Q (g) OAB (Shaded portion)
Solve Mentally (h) Segment ED (Shaded portion)
True or False 4. (a) Yes (b) No 5. (a) True (b) True
1. True 2. True 3. False 4. False 5. True Chapter 5
Fill in the Blanks 1. AB = BC and BC = CD, therefore, AB = CD
1. AB 2. 3 cm 3. 15° 4. 100° 1 1 1 3 3 3
5. 45°, 45°, 90°; 30°, 60°, 90° 2. (a) (b) (c) (d) (e) (f) 4
4
2
4
4
4
3
3
Answer in One Word or a Line 3. (a) (b) (c) 1
1. 2 arcs 2. Infinite 3. 0 4. Yes 5. 3 4 4 2
4. (i) (c), (ii) (d), (iii) (a), (iv) (e), (v) (b)
Thinking Skills 5. A square is a ‘regular’ quadrilateral.
3. Yes, yes 5. Yes
Chapter 6
Exemplar Problems 1. (a) +2000 (b) –800 (c) +200 (d) –700
1. d 2. True 3. True 4. two 2. (a) 9 (b) –3 (c) 0 (d) 10 (e) 6 (f) 1
5. Students to do on their own 3. (a) 8 (b) 0 (c) –4 (d) –5
6. Students to do on their own. 4. (a) 4 (b) –38
7. Students to do on their own. 8. Yes 5. (a) < (b) > (c) > (d) >
300