BCE JONES Math Rounding Decimals

Front

What is rounding in mathematics?

Back

Rounding is the process of adjusting the digits of a number to make it simpler while keeping its value close to what it was. It often involves reducing the number of decimal places.

Front

What does it mean to round to the nearest tenth?

Back

Rounding to the nearest tenth means looking at the digit in the hundredths place to determine whether to round the tenths place up or keep it the same.

Front

How do you round a decimal number?

Back

To round a decimal number, identify the place value you are rounding to, look at the digit immediately to the right, and apply the rounding rules (if it's 5 or more, round up; if it's less than 5, round down).

Front

What is the rule for rounding up?

Back

If the digit to the right of the rounding place is 5 or greater, you round up the rounding place by one.

Front

What is the rule for rounding down?

Back

If the digit to the right of the rounding place is less than 5, you keep the rounding place the same and drop all digits to the right.

Front

What is the result of rounding 7.81 to the nearest tenth?

Back

7.8, because the digit in the hundredths place (1) is less than 5.

Front

What is the result of rounding 9.715 to the nearest hundredth?

Back

9.72, because the digit in the thousandths place (5) rounds the hundredths place up.

Front

When rounding 16.802 to the nearest tenth, what is the result?

Back

16.8, because the digit in the hundredths place (0) does not round the tenths place up.

Front

Is 1.72 rounded to the nearest tenth equal to 1.7 or 1.8?

Back

1.7, because the digit in the hundredths place (2) rounds down.

Front

What is the result of rounding 5.592 to the nearest hundredth?

Back

5.59, because the digit in the thousandths place (2) does not round the hundredths place up.