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 increasing or decreasing the last digit based on the value of the digit that follows it.

Front

How do you round a decimal to the nearest tenth?

Back

To round a decimal to the nearest tenth, look at the hundredths place (the second digit after the decimal). If it is 5 or greater, round up the tenths place by one. If it is less than 5, keep the tenths place the same.

Front

What is the value of the digit 7 in the number 9,782?

Back

In the number 9,782, the digit 7 is in the hundreds place, which means it is worth 700.

Front

What is the value of the digit 7 in the number 8,978?

Back

In the number 8,978, the digit 7 is in the tens place, which means it is worth 70.

Front

When rounding to the nearest whole number, what do you look at?

Back

When rounding to the nearest whole number, you look at the first decimal place. If it is 5 or greater, round up. If it is less than 5, round down.

Front

What is the rule for rounding to the nearest hundredth?

Back

To round to the nearest hundredth, look at the thousandths place (the third digit after the decimal). If it is 5 or greater, round up the hundredths place by one. If it is less than 5, keep the hundredths place the same.

Front

Which number rounds to 23.34 when rounded to the nearest hundredth?

Back

Numbers like 23.335, 23.336, and 23.337 round to 23.34 when rounded to the nearest hundredth.

Front

Which number does NOT round to 5 when rounded to the nearest whole number?

Back

Numbers like 5.56 do not round to 5 when rounded to the nearest whole number; they round to 6.

Front

What is the significance of the digit after the rounding place?

Back

The digit after the rounding place determines whether to round up or down. If it is 5 or greater, round up; if it is less than 5, round down.

Front

How do you determine the place value of a digit in a number?

Back

The place value of a digit in a number is determined by its position. For example, in the number 4,562, the 5 is in the hundreds place, making its value 500.