Ch. 1 Place Value Review

Front

What is the expanded form of a decimal number?

Back

The expanded form of a decimal number shows the value of each digit in the number. For example, the expanded form of 6.504 is 6 + 0.5 + 0.004.

Front

What is the standard form of a number?

Back

The standard form of a number is the way we usually write numbers using digits. For example, the standard form of six hundred thirteen billion, two hundred seven thousand, twelve is 613,000,207,012.

Front

How do you round a number to the nearest hundred thousand?

Back

To round a number to the nearest hundred thousand, look at the ten-thousands place. If it is 5 or more, round up; if it is 4 or less, round down.

Front

What digit is in the billions place in the number 452,869,483,834?

Back

The digit in the billions place is 2.

Front

What is the expanded form of 3.702?

Back

The expanded form of 3.702 is 3 + 0.7 + 0.002.

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 5,432, the place value of 5 is five thousand.

Front

What is the value of the digit 7 in the number 7,654,321?

Back

The value of the digit 7 in the number 7,654,321 is 7,000,000.

Front

How do you identify the digit in the hundred-thousands place?

Back

To identify the digit in the hundred-thousands place, count six places from the right in a whole number.

Front

What is the difference between standard form and expanded form?

Back

Standard form is the usual way of writing numbers using digits, while expanded form breaks down the number into the sum of its parts.

Front

What is rounding?

Back

Rounding is the process of adjusting the value of a number to make it simpler while keeping it close to the original value.