Page 354 - Start Up Mathematics_7

Chapter 16 (d) The decimal shifts p places to the right
1. Marks Tally marks Frequency (e) Either terminating or non-terminating recurring
decimals.
1 1
Section E
2 2 21
,
3 1 5. 84 6. 67 pieces
4 3 1 2 3 4 5 6 7 8 9
2 3 4 5 6 7 8 9 10
5 5

6 4 1 2
3 4
7 2 1 4
4 6
8 1 1 6
9 1 5 8
1 8
(i) 9 (ii) 1 (iii) 8 (iv) 5 6 10
0 + 8 + 6 + 4 18 9 1 10
2. (i) 12.5 (ii) 3 (iii) 4 = 4 or (iv) A 7 12
2
1
12
3. (i) 151 cm (ii) 128 cm (iii) 23 cm 8 14
(iv) 141.4 cm (v) 5 1 14
9
16
4. (i) T (ii) F (iii) T (iv) F 1 16
5. Students to do on their own. 10 18
18
1
6. (i) Jammu (ii) Jammu, Bengaluru 11 20
(iii) Bengaluru and Jaipur or Bengaluru and Ahmedabad
(iv) Mumbai 2 2 2 2 2 2 2 2 2
6 8 10 12 14 16 18 20 22
Chapter 17
Sample Test Paper 2
1. (i) Certain to happen (ii) Can happen but not certain
(iii) Impossible (iv) Can happen but not certain Section A
(v) Can happen but not certain 1. (a) B (b) C (c) A (d) A (e) B
1 1 1
2. (i) (ii) 6 3. 2 Section B
6
2. (a) True (b) False (c) False (d) True (e) False
Sample Test Paper 1
Section C
Section A 3. (a) 2, 5 (b) 10 (c) 0 (d) solution (e) 72%
1. (a) C (b) A (c) C (d) A (e) B Section D

4. (a) The number having greater power of 10 is greater,
Section B else compare their decimal part.
2. (a) True (b) True (c) False (d) False (e) True
(b) 0 (c) 14 marbles (d) 39 (e) ` 233.75
Section C Section E
3. (a) 0 (b) proper (c) reciprocal (d) 2.15 (e) greater 5. x = 24 6. ` 1,40,400; ` 2,80,800
Project Work
Section D
1. (a) iv (b) i 2. c
4. (a) |x| = x if x ≥ 0
= –x if x < 0 Sample Test Paper 3

(b) Fractions having the same denominator Section A
4 1. D 2. A 3. D 4. C 5. A
(c)
100 6. B 7. A 8. B 9. B 10. D

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