2.NBT.3-Expanded Notation and Word Form

Front

What is expanded form in mathematics?

Back

Expanded form is a way of writing numbers that shows the value of each digit. For example, the number 432 can be written in expanded form as 400 + 30 + 2.

Front

How do you convert a number from expanded form to standard form?

Back

To convert from expanded form to standard form, you add the values of each part together. For example, 600 + 40 + 2 equals 642.

Front

What is the standard form of the number written as 300 + 20 + 5?

Back

The standard form of 300 + 20 + 5 is 325.

Front

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

Back

The place value of a digit is determined by its position in the number. For example, in the number 689, the digit 6 is in the hundreds place, 8 is in the tens place, and 9 is in the ones place.

Front

What is the expanded form of the number 760?

Back

The expanded form of 760 is 700 + 60 + 0.

Front

How do you write the number 147 in expanded form?

Back

The number 147 can be written in expanded form as 100 + 40 + 7.

Front

What is the expanded form of the number 689?

Back

The expanded form of 689 is 600 + 80 + 9.

Front

What is the purpose of using expanded form?

Back

The purpose of using expanded form is to help understand the value of each digit in a number and to facilitate addition and subtraction.

Front

How can you check if your expanded form is correct?

Back

You can check if your expanded form is correct by adding the parts together to see if they equal the original number.

Front

What is the standard form of 400 + 30 + 2?

Back

The standard form of 400 + 30 + 2 is 432.