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.

Tags

CCSS.4.NBT.A.1

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.

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CCSS.4.NBT.A.3

CCSS.3.NBT.A.1

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.

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CCSS.4.NBT.A.2

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.

Tags

CCSS.4.NBT.A.2

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.

Tags

CCSS.4.NBT.A.3

CCSS.3.NBT.A.1

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.

Tags

CCSS.4.NBT.A.1

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.

Tags

CCSS.4.NBT.A.3

CCSS.3.NBT.A.1

Front

What is the nearest ten to 47?

Back

The nearest ten to 47 is 50.

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CCSS.4.NBT.A.3

CCSS.3.NBT.A.1

Front

What is the nearest hundred to 234?

Back

The nearest hundred to 234 is 200.

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CCSS.4.NBT.A.3

CCSS.3.NBT.A.1

Front

How do you write 5,432 in expanded form?

Back

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

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CCSS.4.NBT.A.2