3.2A Skills Test

Front

What is expanded notation?

Back

Expanded notation is a way to write numbers that shows the value of each digit. For example, 345 can be written as (3x100) + (4x10) + (5x1).

Front

What is standard form?

Back

Standard form is the way of writing numbers using digits. For example, the number 2,500 is in standard form.

Front

How do you find the value of a digit in a number?

Back

To find the value of a digit, multiply the digit by its place value. For example, in 45,923, the value of 9 is 9x100.

Front

What is the place value of the digit 5 in the number 5,678?

Back

The place value of 5 in 5,678 is 5,000 or 5x1,000.

Front

What does the digit 0 represent in a number?

Back

The digit 0 represents 'nothing' or 'no value' in a number, but it can hold a place value.

Front

How do you add numbers in expanded notation?

Back

To add numbers in expanded notation, add the values of each part together. For example, (2x100) + (3x10) + (4x1) + (1x1) = 2341.

Front

What is the value of the digit 3 in the number 3,456?

Back

The value of 3 in 3,456 is 3,000 or 3x1,000.

Front

How do you convert expanded notation to standard form?

Back

To convert expanded notation to standard form, add the values together. For example, (4x100) + (2x10) + (5x1) = 425.

Front

What is the value of the digit 2 in the number 72,891?

Back

The value of 2 in 72,891 is 20,000 or 2x10,000.

Front

What is the sum of (1x100) + (2x10) + (3x1)?

Back

The sum is 123.