Page 235 - ICSE Math 5

5 6 8 Review Exercise
9. (a) ; 0.5 (b) ; 0.06 (c) 2 ; 2.8
10 100 10 1. (a) Place value of 4 is 4 thousands, i.e., 4,000.
4 3 44 Place value of 9 is 9 hundreds, i.e., 900.
(d) 30 ; 30.4 (e) 19 ; 19.03 (f) ; 0.44
10 100 100 Place value of 7 is 7 tens, i.e., 70.
Exercise 7.2 Place value of 2 is 2 ones, i.e., 2.
4
1. (a) 14.6 and 100.9; 7.21 and 28.04 Place value of 4 is 4 tenths, i.e., .
10
(b) 79.8 and 120.2; 19.04 and 13.75 8
Place value of 8 is 8 hundredths, i.e., .
(c) 1.02 and 6.07; 2.348 and 21.186 100
5
(d) 0.24 and 1.26; 0.591 and 3.009 Place value of 5 is 5 thousandths, i.e., .
1000
2. (a) 64.480, 92.400, 7.175, 128.300 4 8 5
4,000 + 900 + 70 + 2 + + +
(b) 3.1426, 19.0700, 25.8000, 41.0020 10 100 1000
(c) 59.0800, 617.0190, 28.1026, 88.5000 (b) Place value of 3 is 3 hundreds, i.e., 300.
Place value of 6 is 6 tens, i.e., 60.
(d) 14.0300, 256.9000, 74.2150, 439.1764
Place value of 8 is 8 ones, i.e., 8.
3. (a) > (b) < (c) < (d) > (e) = (f) < 5
(g) < (h) > (i) < Place value of 5 is 5 tenths, i.e., .
10
4. (a) 0.40 < 0.53 < 0.60 (b) 0.04 < 0.14 < 1.04 2
Place value of 2 is 2 hundredths, i.e., .
(c) 0.006 < 0.014 < 0.800 (d) 3.460 < 7.162 < 19.900 100 3
(e) 0.048 < 0.380 < 1.650 (f) 8.142 < 8.490 < 8.497 Place value of 3 is 3 thousandths, i.e., 1000 .
5. (a) 0.56 > 0.53 > 0.25 (b) 2.05 > 0.77 > 0.18 300 + 60 + 8 + 5 + 2 + 3
(c) 0.642 > 0.426 > 0.204 (d) 0.76 > 0.67 > 0.26 10 100 1000
(c) Place value of 2 is 2 hundreds, i.e., 200.
(e) 4.02 > 3.80 > 3.48 (f) 7.61 > 7.16 > 6.71
Place value of 4 is 4 tens, i.e., 40.
Exercise 7.3 Place value of 3 is 3 ones, i.e., 3.
7
1. (a) (b) Place value of 7 is 7 tenths, i.e., .
10
9
Place value of 9 is 9 hundredths, i.e., .
100
5
2. (a) 5.35 (b) 12.5 (c) 45.055 Place value of 5 is 5 thousandths, i.e., .
1000
(d) 26.16 (e) 1,111.2111 (f) 31.218 7 9 5
200 + 40 + 3 + + +
(g) 19.702 (h) 74 (i) 60.02 (j) 19.614 10 100 1000
2. (a) 0.74 < 0.81 < 2.09 (b) 0.007 < 0.016 < 0.2
3. (a) 10.78 (b) 212.514 (c) 196.426
(c) 3.724 < 37.214 < 37.25
(d) 4,480.51 (e) 2,181.78 (f) 122.691
3. (a) 0.55 > 0.35 > 0.25 (b) 11.5 > 5.11 > 1.15
(g) 112.155 (h) 994.62 (i) 29.65
(c) 462.75 > 416.75 > 402.705
4. (a) 32.66 (b) 159.21 (c) 148.05
4. (a) 0.03, 150.30, 15.10 (b) 204 = 51 (c) 2.3
(d) 70.25 (e) 655.26 100 25
Exercise 7.4 5. (a) 3.3 (b) 1,367 (c) 1,739.304
(a) 6 km (b) 0.75 m (c) 7.5 cm (d) 2,149.906 (e) 5,065.06 (f) 1,747.263
(d) 7.18 cm (e) Shop B; ` 4.25 (f) 0.2 m 6. (a) 31.4 (b) 727.9 (c) 462
Exercise 7.5 (d) 24,314 (e) 2,06,420 (f) 3647.9
1. (a) 831.5 (b) 600.2 (c) 95.34 7. (a) 7.5 kg (b) 3.250 km (c) 3.750 L
(d) 227.5 (e) 9,384.7 (f) 7,663.2 (d) ` 8,716.25 (e) ` 279.75; ` 220.25
(g) 45,086 (h) 8,970.4 (i) 9,312 Values and Life Skills
2. (a) 8.406 (b) 2,924.04 (c) 2,275.2 1. 1.4 kg 2. No; ` 96.75
(d) 11.73 (e) 0.512 (f) 0.1268 Progress Worksheet
(g) 107 (h) 48.6648 1. (a) Integral part: 35; Decimal part: 75
3. (a) 31.5 (b) 39.52 (c) 36.744 (b) Integral part: 120; Decimal part: 05
(d) 25.650 (e) 65.9502 (f) 140.1498 (c) Integral part: 5,829; Decimal part: 372
4. (a) 19.04 (b) 190.4 (c) 1.904 (d) 0.1904 (d) Integral part: 2,685; Decimal part: 027

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