Mathematics
Estimate each of the following numbers to their nearest hundreds:
(i) 1246
(ii) 32057
(iii) 53961
(iv) 555555
Number System
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Answer
(i) 1246
The digit at tens place is 4. Since 4 is less than 5, we replace each of the digits at tens place and ones place by 0.
Hence, the rounded off number to the nearest hundreds = 1,200.
(ii) 32057
The digit at tens place is 5. So, we increase the digit at hundreds place by 1 and replace each of the digits at tens place and ones place by 0.
Hence, the rounded off number to the nearest hundreds = 32,100.
(iii) 53961
The digit at tens place is 6. Since 6 is greater than 5, we increase the digit at hundreds place by 1 and replace each of the digits at tens place and ones place by 0. As the hundreds digit is 9, increasing it by 1 carries over.
Hence, the rounded off number to the nearest hundreds = 54,000.
(iv) 555555
The digit at tens place is 5. So, we increase the digit at hundreds place by 1 and replace each of the digits at tens place and ones place by 0.
Hence, the rounded off number to the nearest hundreds = 5,55,600.
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Related Questions
To stitch a trouser, 1 m 30 cm cloth is needed. Out of 25 m cloth, how many trousers can be stitched and how much cloth will remain?
Round off each of the following numbers to their nearest tens:
(i) 77
(ii) 903
(iii) 1205
(iv) 999
Estimate each of the following numbers to their nearest thousands:
(i) 5706
(ii) 378
(iii) 47,599
(iv) 1,09,736
Give a rough estimate (by rounding off to nearest hundreds) and also a closer estimate (by rounding off to nearest tens):
(i) 439 + 334 + 4317
(ii) 8325 - 491
(iii) 1,08,734 - 47,599
(iv) 4,89,348 - 48,365