Question

Round the following decimal numbers upto 1 places of decimal.
(i) $123.37$
(ii) $19.99$

Answer 1

(i) $123.37$
Rounding $123.37$ upto one places of decimal means round to the nearest tenths place. Underling the digit in the tenths place of $123.37$ gives $123.37$. Since the digit next to the tenth place value is 7 which is greater than 5 , we add 1 to the underlined digit to get $123.4$. Hence the rounded value of $123.37$ upto one places of decimal is $123.4$.
(ii) $19.99$
Rounding $19.99$ upto one places of decimal means round to the nearest tenth place. Underling the digit in the tenths place of $19.99$ gives 19.99. Since the digit next to the tenth place value is 9 which is greater than 5 , we add 1 to the underlined digit to get 20 .
Hence the rounded value of $19.99$ upto one places of decimal is $20.0$.