When rounding using decimal places(dp), the degree of accuracy that is required is usually given. However, there are certain calculations where the degree of accuracy may be more obvious. For example, calculations involving money should be given to two decimal places to represent the pence.
To round to a decimal place:
Round 248.561 to 1 decimal place, then round it to 2 decimal places:
Notice that your answer should have the same number of decimal places as the approximation asked for.
Round 0.08513 to 1 decimal place and then to 2 decimal places:
Round 249.5046 to 1 decimal place and then to 2 decimal places.
Notice that 249.50 = 249.5. However, as the question asked for 2 decimal places both numbers are left.
Round 0.9583 to 1 decimal place and then to 2 decimal places.
Round 598.0535 to 2 decimal places, then to 3 decimal places.