Page 120 - New Medley 5 Semester 1

Example 24: Round 63217993 to the nearest thousands.

Solution: Digit in hundreds place of 63217993 is 9. Clearly rule 2
is applicable. To round the number we replace the digit in

hundreds, tens and units places by zeros and add 1000.
Hence 63217000 + 1000 = 63218000.

Rounding to the Nearest Ten-thousands

Rule 1: If the digit in the thousands place is 0 or 1 or 2 or 3 or 4 (less

than 5) then we make the thousands, hundreds, tens and units
place all as zeros.

Rule 2: If the digit in the thousands place is 5 or 6 or 7 or 8 or 9 (more

than or equal to 5) then we make the thousands, hundreds, tens
and units place as zeros and add 10000.

Example 25: Round 290255157 to the nearest ten-thousands.
Solution: Digit in thousands place of 290255157 is 5. Clearly rule 2

is applicable. To round the number we replace the digit in
thousands, hundreds, tens and units places by zeros and

add 10000.
Hence 290250000 + 10000 = 290260000.

Rounding to Nearest Lakhs

Rule 1: If the digit in ten thousands place is 0 or 1 or 2 or 3 or 4 (less

than 5) then we make the thousands, hundreds, tens and units

place all as zeros.
Rule 2: If the digit in the thousands place is 5 or 6 or 7 or 8 or 9 (more

than or equal to 5) then we make the thousands, hundreds, tens

and units place as zeros and add 100 000.

Example 26: Round 1755175 to the nearest lakhs.

Solution: Digit in ten-thousands place of 1755175 is 5. Clearly rule
2 is applicable. To round the number, we replace the digit

in ten thousands, thousands, hundreds, tens and units

places by zeros and add 100000.

Hence 1700000 + 100000 = 1800000.

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