Page 183 - Viva

(e) 100, 90, 80, 70, 60, 50, 40; Start at 100. Subtract 16. vertex 17. sphere 18. Tangram
10 each time. 19. metric 20. 100 21. Volume
(f) 54, 48, 42, 36, 30, 24, 18; Start at 54. Subtract 6 22. 60 23. 60
each time. 24. hours: minutes 25. `; p
3. (a) AaA, BbB, CcC, DdD, EeE, FfF, GgG 26. dot; right 27. Rate 28. title; key
(b) aBc, dEf, gHi, jKl, mNo, pQr, sTu 29. vertical 30. Data classification
(c) AB, BC, CD, DE, EF, FG, GH 31. Patterns 32. unit; part 33. rule
(d) AA, bb, CC, dd, EE, ff, GG C. 1. Th H T O
4. (a)

(b)
2. 9189 < 9243 < 9562 < 9789
(c)
9789 < 9562 > 9243 > 9189
5. (a) 3, 7, 11, 15, 19 (b) 95, 90, 85, 80, 75 3. 9742, 9724, 9472, 9274, 9247, 9427, 7942, 7492,
(c) 2, 4, 8, 16, 32 (d) 110, 100, 90, 80, 70 7294, 7249, 7924, 7429, 4972, 4927, 4792, 4729,
4297, 4279, 2974, 2794, 2947, 2749, 2479, 2497
Progress Worksheet 4. 892 5. 951 6. 6161 7. 267 8. 432
1. Students to do on their own. 9. Actual value: 142; Estimated value: 140
2. (a) 10. Students to do on their own.
11. 396 12. 504 13. 3 apples 14. 4 15. 8
(b) 16. (a) Horizontal lines: 0 (b) Horizontal lines :
Vertical lines: 1 Vertical lines:
3. (a) (ii) (b) (ii) (c) (iii) Curved lines : 1 Curved lines:
4. (a) Start at 3. Add 6 each time. (c) Horizontal lines : 3
(b) Start at 4. Multiply by 2 each time. Vertical lines: 1
(c) Start at 2. Add 2 each time. 17. (a) Cube: It is a solid made up of 6 flat square-
5. (a) shaped faces.
It consists of 12 straight edges and 8 vertices.
(b) (b) Cylinder: It is a solid made up 2 flat faces and
1 curved face.
(c) It has 2 curved edges.

(d) (c) Cone: It is a solid made up of 1 flat face and
1 curved face.
6. (a) 5, 10, 15, 20, 25 (b) 25, 22, 19, 16, 13 It has 1 curved edge.
(c) 7, 21, 63, 189, 567 18. A B C D E F G H I

1 • • • • Q • • • • •
Attempt and Score
A. 1. (b) 2. (c) 3. (d) 4. (a) 5. (b) 2 • • • • • • • • •
6. (c) 7. (b) 8. (a) 9. (b) 10. (a) 3 • P • • • •R • • • •
11. (d) 12. (c) 13. (a) 14. (c) 15. (a) 4 • • • • • • • • •
16. (a) 17. (c) 18. (d) 19. (b) 20. (c)
21. (d) 22. (b) 23. (a) 24. (d) 25. (c) 5 • • • • • • • • •
S
26. (b) 27. (c) 28. (b) 29. (b) 30. (c) 6 • • • • • • • • •
31. (a) 32. (b) 33. (b) (a) PQRS is a rectangle (b) Alphabet N
B. 1. 1000 2. 7000; hundreds 3. 4590 19. 35 m; 45 m 63 cm
4. 943 5. number 6. order 20. Students to do on their own.
7. difference 8. predecessor 21. 6215 cm; 4523 cm 22. 1496 min; 932 min
9. bigger; smaller 10. multiplicand 23. 215 h; 1551 h 24. 8:30 a.m.; 9:05 p.m.
11. vertical; sign 12. 512 26. ` 84; ` 40
13. Division 14. 0 15. 3 27. 383 rupees 25 paise; 299 rupees 36 paise

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