Question

Round the following decimal numbers upto 3 place of decimal.
(i) 1251.2345 (ii)61.00203

Answer 1

(i) 1251.2345
Rounding 1251.2345 upto 3 places of decimal means round to the nearest thousandths place. Underlining the digit in the tenths place of 1251.2345 gives 1251.2345. Since the digit next to the thousandths place value is 5, we add 1 to the underlined digit.

Hence the rounded value of 1251.2345 upto 3 places of decimal is 1251.235.
$\left[1.5\right]$

(ii) 61.00203
Rounding 61.00203 upto 3 places of decimal means round to the nearest thousandths place. Underlining the digit in the tenths place of 61.00203 gives 61.00203 . Since the digit next to the thousanths place value is 0, digit remains unchanged .

Hence the rounded value of 61.00203 upto 3 places of decimal is 61.002.
$\left[1.5\right]$