Rounding Numbers and Decimals

This video tutorial explains how to round numbers to a specified number of decimal places. It covers examples of rounding to two, one, and three decimal places, highlighting the importance of the 'decider' digit in determining whether to round up or down. The tutorial concludes with a reminder to maintain the correct number of decimal places in the final answer.

What is the first step in rounding a number to a specific number of decimal places?

• Identify the decider digit.

• Remove all digits after the decimal point.

• Add one to the last digit.

• Identify the last digit.

If the decider digit is 4 or less, what should you do with the last digit?

• Remove it.

• Leave it as it is.

• Round it down.

• Round it up.

In the example of rounding 8.3175 to two decimal places, what is the final rounded number?

• 8.30

• 8.31

• 8.32

• 8.33

What is the term used for the digit that determines whether to round up or down?

• Last digit

• Decider

• Rounding digit

• Final digit

In the context of rounding, what does the term 'last digit' refer to?

• The first digit after the decimal point.

• The digit that will be the last in the rounded number.

• The digit after the decider.

• The digit before the decimal point.

What is the result of rounding 8.3175 to one decimal place?

• 8.32

• 8.31

• 8.4

• 8.3

When rounding to one decimal place, which digit is considered the last digit?

• The digit immediately after the decimal point.

• The second digit after the decimal point.

• The third digit after the decimal point.

• The digit before the decimal point.

In the example of rounding 217.631 to one decimal place, what is the final rounded number?

• 217.7

• 217.60

• 217.6

• 217.63

What happens to the last digit if the decider is 5 or higher?

• It is rounded up.

• It is left unchanged.

• It is rounded down.

• It is removed.

If the decider digit is 6, what action should be taken?

• Round the last digit down.

• Leave the last digit unchanged.

• Round the last digit up.

• Remove the last digit.