1. Round 521 to the nearest tens
2. Round 521 to the nearest hundreds
3. Round 47618 to the nearest tens
4. Round 47618 to the nearest hundreds
5. Round 47618 to the nearest thousands
6. Round 47618 to the nearest ten thousands
7. Round 36.729 to two decimal places
8. Round 36.729 to one decimal place
9. Round 36.745 to two decimal places
10. Round 36.745 to one decimal place
11. Round 2.14829 to one decimal place
12. Round 2.14829 to two decimal places
13. Round 2.14829 to three decimal places
14. Round 2.14829 to four decimal places
Round off the following numbers to the nearest integer:
15. 288.29
16. 3998.37
17. 4856.795
18. 4999.96
19. 1.99
20. 1.0012
1. Answer :
Consider multiples of 10 before and after 521. (i.e. 520 and 530)
We find that 521 is nearer to 520 than to 530.
It has been illustrated in the picture given below.
Therefore, the nearest tens of 521 is 520.
2. Answer :
Consider multiples of 100 before and after 521. (i.e. 500 and 600)
We find that 521 is nearer to 500 than to 600. So, the nearest hundreds of 521 is 500.
Answers for questions 3 to 20 :
3. The nearest tens = 47,620
4. The nearest hundreds = 47,600
5. The nearest thousands = 48,000
6. The nearest ten thousands = 50,000
7. It is 36.73 round to two decimal places. (Since the last digit 9 > 5, we add 1 to 2 and make it 3).
Therefore, 36.729 ≃ 36.73 (Round to two decimal place)
8. Look at the second decimal in 36.729, Here it is 2 which is less than 5, so we leave 7 as it is.
Therefore, 36.729 ≃ 36.7 (Round to one decimal place)
9. It’s approximation is 36.75, round to two decimal places. Since the last digit is 5, we add 1 to 4 and make it 5.
10. It’s approximation is 36.7, round to one decimal place. Since the second decimal is 4, which is less than 5, we leave 7 as it is.
36.745 ≃ 36.7
11. Rounded to one decimal place is 2.1
12. Rounded to two decimal places is 2.15
13. Rounded to three decimal places is 2.148
14. Rounded to four decimal places is 2.1483
15. 288
16. 3998
17. 4857
18. 5000
19. 2
20. 1
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