Page 300 - Start Up Mathematics_6

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7
64
9
5
3. (a) 20 (b) 12 4. 66 5. 10 5 6. 11 7. 1 12 m 6. (a) 18 = 1.8 (b) 100 = 0.64
10
63
6
46
8. Section A 9. Shivam (c) 100 = 0.46 (d) 235 = 0.235
, 1 000
Thinking Skills 688
(e) = 0.688
1. A mixed fraction is a combination of a natural number , 1 000
and a proper fraction; 1 4 Exercise 8.2
6 1. (a) 1028.203 (b) 1006.7487 (c) 2126.246 (d) 1880.608
2. Two fractions are equivalent if they represent proportional 2. (a) 576.246 (b) 286.777 (c) 1.883 (d) 349.151
parts. The shaded part of two figures represents equivalent 3. (a) 1 m 28 cm (b) 2 Kg 850 g 4. 26.541
fraction 1 2 The shaded part of circle and triangle have 5. 66.35 6. 10.7°C 7. ` 44.10
different areas. 8. ` 425.75 9. ` 1,794.90
10. ` 1,021.49; ` 178.51 11. ` 406.95; ` 593.05
3. (a) 7 (b) 3 (c) 3
16 16 16 Reason It Out!
1 1. 123.45628 < 111.414 < 3.802 < 762.919
4. (a) Milk drinkers; 12 (b) 70 (c) 105; Yes 2. (a) .5, .6 (b) .07, .08 (c) 8.1, 10.1 (d) .0001, .00001
Values and Life Skills 3. P = 0.752, Q = 0.758
2
1. 2. Roshan Review Exercises
3 Multiple Choice Questions
1
2
1
1
2
3. Rama , Sheenu , Jina ; < < 1 1. d 2. a 3. a 4. b 5. c
2 4 5 4 5 2 6. a 7. b
4. Simmi Solve Mentally
Exemplar Problems True or False 3. False 4. False 5. False
2. True
1. True
1. d 2. b 3. False 4. Equivalent 6. True
1537 7 1 1
5. m 6. 2 7. 15 km 8. 1 kg Fill in the Blanks
100 9 4 4 2
9. (a) Denominators have been added 1. tenths 2. , 1 000 3. 0.01 4. remains same 5. 3.401
(b) Numerators and denominators have been added Answer in One Word or a Line 503
1
10. 9 and 5 11. 1 1. Yes 2. 10 3. ` 3.24 4. –6 and –5 5. 100
22 22 2 Let’s Evaluate
12. Natural number = 3 ; Whole number = 4 1. Hundreds Tens Ones Tenths Hundredths Thousandths
7 7
Integer = 7 = 1 (a) 3 2 1 3 1 0
7 (b) 0 6 6 7 5 8
Chapter 8 2. (a) 607.55 (b) 47.047
Help the Caterpillar Reach Its Food 3. (a) 0.043 (b) 0.006 (c) 14.28 (d) 0.45 (e) 3.25
.005 → .006 → .03 → .045 → .063 → .217 → .32 → .471 4. (a) 565.34 (b) 379.123
→ .581 → .602 → .818 → .881 → .902 → .99 → 1 (Leaf) 5. (a) 7 (b) 3 (c) 321 (d) 401 (e) 41
Exercise 8.1 10 , 1 000 5 200 4
6. 16.591 7. 10.35 8. (a) 23.880 (b) 10.77
1. Hundreds Tens Ones Tenths Hundredths Thousandths 9. (a) 1,628.203 (b) 563.922
(a) 0 2 0 5 0 0 10. (a) 576.242 (b) 28.772 11. 18.7°C
(b) 0 0 0 7 1 0 12. (a) 2 m 93 cm (b) 5 kg 700 g
(c) 1 2 1 3 0 0 Thinking Skills 1
(d) 2 1 6 7 3 4 1. Every fraction can be converted into a decimal. 5 can
be converted to decimal fraction but not 1 .
2. (a) 30.7 (b) 416.05 (c) 207.53 (d) 12.012 3
3. (a) 26.3 (b) 333.33 (c) 53.0407 (d) 79.123 2. Decimals can also be used to represent a whole and a
part, hence its value can also be more than 1.
1
4. (a) 4 (b) 7 (c) 45 (d) 73 (e) 80 3. (a) I (b) II (c) III (d) I
20
5
2
4
5. (a) 3.880 (b) 0.77 (c) 1.432 (d) 27.213 (e) 2.9302 (e) IV (f) I (g) II (h) IV
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