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 3 is in the hundreds place, so its value is 300.

Front

What is the expanded form of a number?

Back

The expanded form of a number shows the value of each digit. For example, the expanded form of 236 is 200 + 30 + 6.

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 'three hundred fifty-two' is 352.

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 does it mean to order numbers from least to greatest?

Back

Ordering numbers from least to greatest means arranging them from the smallest number to the largest number.

Front

What is the word form of a number?

Back

The word form of a number is how you write the number using words. For example, the word form of 456 is 'four hundred fifty-six'.

Front

What is the value of the digit 7 in the number 7,482?

Back

In the number 7,482, the digit 7 is in the thousands place, so its value is 7,000.

Front

How do you compare two numbers?

Back

To compare two numbers, look at their place values starting from the left. The first digit that differs determines which number is greater.

Front

What is the difference between a digit and a number?

Back

A digit is a single symbol used to represent numbers (0-9), while a number is made up of one or more digits.

Front

What is rounding?

Back

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