Place Value and Rounding

Front

What is place value?

Back

Place value is the value of a digit based on its position in a number. For example, in the number 345, the digit 3 is in the hundreds place, so its value is 300.

Front

How do you round a number to the nearest ten?

Back

To round a number to the nearest ten, look at the digit in the ones place. If it is 5 or more, round up. If it is 4 or less, round down.

Front

What is the standard form of a number?

Back

Standard form is the way of writing numbers using digits. For example, twenty-one thousand, six hundred fifty-six is written as 21,656.

Front

What is expanded form?

Back

Expanded form is a way of writing a number that shows the value of each digit. For example, 4,305 in expanded form is 4,000 + 300 + 5.

Front

How do you round a number to the nearest hundred?

Back

To round a number to the nearest hundred, look at the digit in the tens place. If it is 5 or more, round up. If it is 4 or less, round down.

Front

What is the value of the digit 6 in the number 26,478?

Back

The value of the digit 6 in the number 26,478 is 6,000 because it is in the thousands place.

Front

What does it mean to round a number?

Back

Rounding a number means adjusting it to a nearby value that is easier to work with, usually to a specific place value like the nearest ten or hundred.

Front

What is the nearest ten to 47?

Back

The nearest ten to 47 is 50.

Front

What is the nearest hundred to 234?

Back

The nearest hundred to 234 is 200.

Front

How do you write 5,432 in expanded form?

Back

5,432 in expanded form is 5,000 + 400 + 30 + 2.