Page 210 - Math Skill - 5

208 Maths

Exercise 14.2

1. (a) 1400 (b) 2017 (c) 2016

2. Scale: 1 unit = 10 marks 3. 130
100 120
110 Scale: 1 unit = 10 children
90 100
90
80
80
70 70 125 126
60 Number of Children 60 80 90 96
50
Marks (MM-100) 40 30
50
40
20
30
10
20
2
10 1 st term (60) 2 nd term (62) 1 st term (70) 2 nd term (75) 1 st term (18) 2 nd term (82) 1 st term (81) 2 nd term (85) 1 st term (94) 2 nd term (86) 0 1 st Class nd 3 rd 4 th 5 th
0 (a) Scale: 1 unit = 10 children
English Hindi Maths Science Social
Subjects Science (b) Maximum Number of children are in
nd
(a) Maths (b) English class 2 i.e. 126 and minimum number
of children are in class 3 i.e. 80.
rd
(c) Yes, in the subject of Social Science.
Exercise 14.3
1 1 5 5
1. (a) 720 (b) (c) (d) (e) 2. (a) Cricket (b) Tennis (c) Hockey and football
3 4 18 36
Assessment Time

A. 1. (a) 2. (b) 3. (a) 4. (d) 5. (d) B. 1. Pictograph 2. Vertically 3. Quality
C. 1. (iii) 2. (iii) 3. (ii) 4. (i) D. 1. (c) 2. (a)

CHAPTER - 15: PATTERN, NET AND SYMMETRY

Boot-up Do yourself
Exercise 15.1

1. (a) 25; 1 + 3 + 5 + 7 + 9 + 11 = 36 (b) 91, 105, 120 (c) 100, 121, 144 2. 81, 100, 121, 144, 169, 196
3. 42 × 42 = 1764; 44 × 44 = 1936 4. Do yourself
Exercise 15.2

6
1. (b) 1 2 3 4 is a net of a cube 2. (a) – c (b) – a (c) – d (d) – b
5
Exercise 15.3

1. (b) and (c) 3. (a) reflection and rotational (b) three (c) infinite (d) plane
Assessment Time

A. 1. (c) 2. (a) 3. (a) 4. (b) 5. (c) B. 1. 21,28 2. 48,58 3. 23,33 4. 75,125
Assessment - 4

1. (d) 2. (c) 3. (a) 4. (b) 5. (a) 6. 180° 7. Radius 8. Chord 9. 90° 10. Equal
11. 31.5 or 32 stamps 12. 126 cm 13. 2 cm 14. (a) 15. (c) 16. 60 cm 17. (a) Friday (b) Thursday
3
(c) Friday (d) 6 packet (e) 30 packets 18. 441 cm 19. 8 cm 20. 216 cm 3
2