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The worksheet on rounding decimals would be really good for the students to practice huge number of questions related to round a decimal.
This worksheet include questions related round decimals to the nearest whole number; round decimals to the nearest tenth; round decimals to the nearest hundredth and round decimals to the nearest thousandth.
I. Round off each of the following to the nearest whole number.
(a) 8.71
(b) 26.01
(c) 69.48
(d) 103.72
(e) 49.84
(f) 101.35
(g) 39.814
(h) 1.23
II. Round off the decimal:
(a) 3.153 to the nearest tenths
(b) 10.126 to the nearest hundredths
(c) 5.0014 to the nearest thousandths
(d) 5.992 to the nearest tenths
(e) 21.805 to the nearest hundredths
(f) 3.1089 to the nearest thousandths
III. Find the value of
(a) 23.37 correct to 1 decimal place
(b) 1.2003 correct to 3 decimal places
(c) 7.755 correct to 2 decimal places
(d) 9.99 correct to 1 decimal place
(e) 101.2345 correct to 3 decimal places
(f) 121.513 correct to 2 decimal places
(g) 1.00203 correct to 4 decimal places
(h) 301.081 correct to 2 decimal places
(i) 0.3446 correct to 3 decimal places
(j) 10.947 correct to 1 decimal place
IV. Find the number of significant digits in the following.
(a) 5.60
(b) 0.09
(c) 80.80
(d) 9.03
(e) 101
(f) 70.3
(g) 0.304
(h) 0.05010
V. Round off the following decimals to the nearest one.
1. 17.5
2. 0.6
3. 28.7
4. 22.98
5. 192.25
6. 13.34
7. 2.946
8. 12.13
9. 21.72
10. 124.73
11. 322.18
12. 92.32
13. 532.63
14. 681.30
15. 98.06
16. 79.38
17. 4.937
18. 26.84
19. 6.937
20. 107.06
21. 7.93
22. 53.138
23. 19.069
24. 231.38
25. 12.93
26. 173.222
27. 30.438
28. 117.909
VI. Round off the following decimals to the nearest tenth.
1. 28.75
2. 1.34
3. 16.26
4. 4.94
5. 240.79
6. 24.07
7. 125.552
8. 722.123
9. 34.365
10. 432.241
11. 95.38
12. 36.87
13. 132.92
14. 24.247
15. 38.247
16. 122.342
17. 12.426
18. 24.026
19. 44.387
20. 137.48
21. 14.638
22. 125.29
23. 12.831
24. 54.321
25. 57.342
26. 105.38
27. 56.711
28. 631.203
VII. Round off the following to the nearest hundredth.
1. 25.725
2. 0.698
3. 17.304
4. 63.354
5. 21.895
6. 8.082
7. 12.416
8. 26.173
9. 83.438
10. 17.329
11. 32.254
12. 65.973
13. 52.346
14. 41.452
15. 78.437
16. 23.245
17. 56.214
18. 42.163
19. 41.216
20. 46.581
21. 31.575
22. 89.268
23 24.438
24. 9.3472
25. 7.3249
26, 21.3038
27. 291.343
28. 51.555
VIII. Round off to the nearest thousandth place.
1. 4.17392
2. 9.32385
3. 0.38432
4. 1.11312
5. 8.030816
6. 4.03845
7. 6.43812
8. 4.52389
9. 2.64391
10. 17.3216
11. 12.03084
12. 36.4949
IX. Round off the following to the nearest tenth.
1. 0.5555.....
2. 0.3636.....
3. 0.9999.....
4. 0.6363.....
5. 0.9166.....
6. 0.3333.....
7. 0.7777.....
8. 0.7142.....
9. 0.57142.....
10. 0.1428.....
11. 0.6666.....
12. 0.966.....
X. Round off the following to the nearest hundredth.
1. 0.1666.....
2. 1.8366.....
3. 0.4285.....
4. 1.1428.....
5. 2.4444.....
6. 7.6666.....
7. 4.3333.....
8. 5.7777.....
9. 0.9090.....
10. 0.0769.....
11. 0.1538.....
12. 0.4615.....
XI. Round off the following to the nearest thousand.
1. 1.31428.....
2. 0.63333.....
3. 0.818181.....
4. 2.32857.....
5. 0.15432.....
6. 0.58888.....
7. 6.14666.....
8. 0.79797.....
9. 0.55555.....
10. 2.67441.....
11. 0.53488.....
12. 1.33709.....
XII. Round off the following as directed.
(i) 6.8, 8.53, 12.75, 5.83 and 17.42 to the nearest one
(ii) 2.75, 3.68, 6.203, 8.529 and 193.325 to the nearest tenth
(iii) 15.645, 17.308, 9.2541, 5.6793 and 19.7823 to the nearest hundredth
XIII. Fill in the blanks:
A. Rounding off to the nearest one
(i) 9.8 = __________
(ii) 4.21 = __________
(iii) 7.92 = __________
(iv) 22.38 = __________
(v) 38.62 = __________
B. Rounding off to the nearest tenth
(i) 6.43 = __________
(ii) 8.07 = __________
(iii) 5.371 = __________
(iv) 17.693 = __________
(v) 16.502 = __________
C. Rounding off to the nearest hundredth
(i) 5.2984
(ii) 12.6321
(iii) 24.6384
(iv) 29.9479
(v) 28.4021
XIV. Word problems involving place value of decimals
(i) What is the nearest whole number of 13.607?
(ii) What is the place value to the nearest tenths of 3.105?
(iii) What is the place value to the nearest hundredths of 41.252?
(iv) What is the place value to the nearest thousandths of 56.3009?
(v) What is the place value to the nearest whole number of 9.57?
XV. Word problems on rounding off a decimals:
(i) An export house purchases 9237.125 m of cloth. Find the length of cloth purchased to the nearest one.
(ii) Nairitee was asked to add 7.63, 8.96 and 2.25. She had to mention the answer to the nearest one. She mentioned the answer as 18. Is the answer correct? If not, what is the correct answer?
Answers for the worksheet on rounding decimals are given below to check the exact answers of the above problems related to round off the place value of decimals.
Answers:
I. (a) 9
(b) 26
(c) 69
(d) 104
(e) 50
(f) 101
(g) 40
(h) 1
II. (a) 3.2
(b) 10.13
(c) 5.001
(d) 6
(e) 21.81
(f) 3.109
III. (a) 23.4
(b) 1.200
(c) 7.76
(d) 10.0
(e) 101.235
(f) 121.51
(g) 1.0020
(h) 301.08
(i) 0.345
(j) 10.9
IV. (a) 3
(b) 1
(c) 4
(d) 3
(e) 3
(f) 3
(g) 3
(h) 4
V. 1. 18
2. 1
3. 29
4. 23
5. 192
6. 13
7. 3
8. 12
9. 22
10. 125
11. 322
12. 92
13. 533
14. 681
15. 98
16. 79
17. 5
18. 27
19. 7
20. 107
21. 8
22. 53
23. 19
24. 231
25. 13
26. 173
27. 30
28. 118
VI. 1. 28.8
2. 1.3
3. 16.3
4. 4.9
5. 240.8
6. 24.1
7. 125.6
8. 722.1
9. 34.4
10. 432.2
11. 95.4
12. 36.9
13. 132.9
14. 24.2
15. 38.2
16. 122.3
17. 12.4
18. 24
19. 44.4
20. 137.5
21. 14.6
22. 125.3
23. 12.8
24. 54.3
25. 57.3
26. 105.4
27. 56.7
28. 631.2
VII. 1. 25.73
2. 0.7
3. 17.3
4. 63.35
5. 21.9
6. 8.08
7. 12.42
8. 26.17
9. 83.44
10. 17.33
11. 32.25
12. 65.97
13. 52.35
14. 41.45
15. 78.44
16. 23.25
17. 56.21
18. 42.16
19. 41.22
20. 46.58
21. 31.58
22. 89.27
23 24.44
24. 9.35
25. 7.32
26, 21.3
27. 291.34
28. 51.56
VIII. 1. 4.174
2. 9.324
3. 0.384
4. 1.113
5. 8.031
6. 4.038
7. 6.438
8. 4.524
9. 2.644
10. 17.322
11. 12.031
12. 36.495
IX. 1. 0.6
2. 0.4
3. 1
4. 0.6
5. 0.9
6. 0.3
7. 0.8
8. 0.7
9. 0.6
10. 0.1
11. 0.7
12. 1
X. 1. 0.17
2. 1.84
3. 0.43
4. 1.14
5. 2.44
6. 7.67
7. 4.33
8. 5.78
9. 0.91
10. 0.08
11. 0.15
12. 0.46
XI. 1. 1.314
2. 0.633
3. 0.818
4. 2.329
5. 0.154
6. 0.589
7. 6.147
8. 0.798
9. 0.556
10. 2.674
11. 0.535
12. 1.337
XII. (i) 7, 9, 13, 6, 17
(ii) 2.8, 3.7, 6.2, 8.5, 193.3
(iii) 15.65, 17.31, 9.25, 5.68, 19.78
XIII. A. (i) 10
(ii) 4
(iii) 8
(iv) 22
(v) 39
B. (i) 6.4
(ii) 8.1
(iii) 5.4
(iv) 17.7
(v) 16.5
C. (i) 5.3
(ii) 12.63
(iii) 24.64
(iv) 29.95
(v) 28.4
XIV. (i) 14
(ii) 3.1
(iii) 41.25
(iv) 56.301
(v) 10
XV. (i) 9237 m
(ii) No, 19
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