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In this activity, we will round a decimal number to 2 decimal places.
Method
To round a decimal to 2 decimal places, we check the digit in the 3rd decimal place (i.e. the thousandths column).
If the thousandths digit is 5 or more, round UP.
If the thousandths digit is 4 or less, round DOWN.
Examples
19.746 is between the 2 decimal place numbers 19.74 and 19.75
The 6 thousandths tell us to round UP to 19.75
19.746 rounds up to 19.75 to 2 dp
19.342 is between the 2 decimal place numbers 19.34 and 19.35
The 2 thousandths tell us to round DOWN to 19.34
19.342 rounds down to 19.34 to 2 dp
Are you ready to have a go at some questions now?
