Rounding to a Given Place Value Flashcards

All 5 cards in this deck

What are the steps to round a number to a given place value?
e.g. round $2538$ to the nearest hundred

1. Find the digit in that place: hundreds digit is $5$
2. Look at the digit to its right: $3$, which is less than $5$, so the $5$ stays
3. Replace the following digits with zeros: $2500$

Which digit do you look at to round a number to 2 decimal places?
e.g. rounding $1.8763$ to 2 dp

The third decimal digit — round up if it is 5 or more.
Here it is $6$, so $1.8763 \to 1.88$

True or false? Rounding $4.97$ to 1 decimal place gives $4.9$

False. The next digit is $7$, so the $9$ rounds up and the answer is $5.0$

To what degree of accuracy should an answer in pounds (£) normally be given?

2 decimal places (the nearest penny).
e.g. £$14.3$ is written £$14.30$

True or false? When a number is rounded to the nearest 1000, the digits after the thousands place are replaced by zeros.

True. Zeros keep the place value.
e.g. $29\,381 \to 29\,000$