Page 336 - Start Up Mathematics_7

Chapter 2 2. (a) > (b) <
Exercise 2.1 3 7 667 361
3. (a) (b) (c) (d)
3 4 2 2 9 11 3 5 8 5 40 20
1. (a) < (b) < (c) > (d) <
4 5 9 3 10 15 5 7 4. ` 147 3 5. 170 1 m 6. 12 7. 120
2
127 5 1 2 3 4 20 2
2. (a) , , , (b) , , ,
33 9 6 2 3 4 5 8. ` 350 1
5 7 11 13 9 17 3 7 4
3. (a) , , , (b) , , , Exercise 2.4
6 9 15 18 10 20 5 15
19 43 67 17 3 5 7 3
4. (a) (b) (c) (d) 7 1. (a) (b) (c) (d)
5 30 12 30 7 3 6 7
15 19 41 11 2. (a) 24 (b) 10 (c) 18 (d) 35
5. (a) (b) (c) (d) 7 3
7 6 15 21 39 7 4
6. 9 7. 25 8. Jack, 2 75 minutes 3. (a) 8 (b) 36 (c) 3 (d) 30
4 4 77 1 25 3
19 1 1 4. m 5. 6. ` 63 7. 30
9. 11 km 10. 25 m 11. 2h 2 19 19
24 3 2
17 8. 263 9. (a) 33 (b) 11 (c) 7 (d) 33
12. (a) 8 cm (b) 8 cm 10 12 3
20 14
Reason It Out!
Perimeter of ∆ ABE is greater 9 9 9
(a) 7 , 41 (b) , , (c) 77 ,7
,
,
Exercise 2.2 8 88 16 32 64 42
4 4 4 65 4
,
,
1. (a) = (d) 25 125 625 (e) 87 , 6
,
Grid Fun
(b) = Minute, Multiply, Inch, Total, Quotient, Division, Sum, Year,
Product, Metre
Review Exercises
(c) = Multiple Choice Questions

1. a 2. c 3. b 4. c
(d) = 5. b 6. a 7. d

(Note: Figures of answers may vary) Solve Mentally
True or False
3 36
2. (a) (b) (c) 6 (d) 2 1. False 2. False 3. False
2 5
(e) 6 (f) 22 (g) 44 (h) 93 4. True 5. True 6. True
2 Fill in the Blanks
75 19
3. (a) (i) 6 (ii) 7 (iii) (iv) 2 3
16 8 1. 2. 165 km 3. unity 4. ` 15
7 4
50 1,085 1,285 9 3
(b) (i) (ii) 20 (iii) (iv) 5. 14 6. 72 7. 8 8.
3 36 36 60
1 3 Answer in One Word or a Line
4. 5. (a) 2 L (b) 1. Fractions having same denominator are called like
6 5 fractions.
Exercise 2.3
2. The fractions are reciprocal or multiplicative inverse of
1. (a) 8 (b) 63 (c) 133 (d) 55 each other.
35 16 8 18 3. 1

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