Page 63 - Mathematics

6. Write 0.00607049 correct to:
(a) 3 decimal places (c) 5 decimal places
(b) 4 decimal places (d) 6 decimal places

7. (a) Write each of the following numbers correct to 1 decimal place. Tanzania Institute of Education
(i) 17.84 (ii) 17.084 (iii) 2.045 (iv) 0.048

(b) Write each of the following numbers correct to 2 decimal places.
(i) 23.748 (ii) 23.0845 (iii) 0.0485 (iv) 0.0803

8. Write the following numbers correct to 2 significant figures.
(a) 8 034 000 (d) 0.82500 (g) 0.008
(b) 0.47 (e) 1.0271 (h) 0.307

(c) 0.0785 (f) 6.0450 (i) 0.379
9. Convert each of the following fractions into decimals and write your

answer correct to 2 decimal places.
9 18 17
(a) (b) (c)
13 19 180

10. Determine the number of significant figures in each of the following

numbers.
(a) 2.73 (c) 0.006 (e) 0.12000

(b) 400 780 (d) 0.1089 (f) 4 800 kg
11. Write:
(a) 34.996 correct to 2 decimal places.

(b) 35.0482 correct to 3 significant figures.

12. Write each of the following numbers correct to three decimal places.
(a) 0.00606 (d) 2.6047
(b) 3.199281 (e) 72.87247

(c) 8.27491
13. Approximate the answers of each of the following:
11.3 1
(a) (c) 67.3× Mathematics Form One
0.11 4.96
42.3 2.81×
(b) 4.93 2.14× (d)
20.5

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25/10/2024 09:51:16
Mathematics form 1.indd 57
Mathematics form 1.indd 57 25/10/2024 09:51:16