How to Round Decimals Places #19

The video tutorial explains how to round numbers to a specified number of decimal places. It covers the concept of identifying the 'last digit' and the 'decider' digit, which determines whether to round up or down. The tutorial provides examples of rounding numbers to two, one, and three decimal places, highlighting special cases like rounding up a nine. The importance of maintaining the correct number of decimal places in the final answer is emphasized.

When rounding 8.3175 to two decimal places, which digit is considered the 'decider'?

• 1

• 7

• 5

• 3

If you are rounding 217.631 to one decimal place, what will the result be?

• 217.63

• 217.7

• 217.6

• 218

In the context of rounding, what happens when the 'decider' is 3?

• Change the last digit to zero

• Add one to the last digit

• Round up the last digit

• Round down the last digit

When rounding 17.3695 to three decimal places, what is the final result?

• 17.37

• 17.370

• 17.371

• 17.369

Why is it important to keep the zero in the answer when rounding 17.3695 to three decimal places?

• To ensure the number is rounded correctly

• To avoid confusion with other numbers

• To maintain the required number of decimal places

• To make the number look larger