Unit 2 Review

Front

What is expanded notation?

Back

Expanded notation is a way of writing numbers to show the value of each digit. For example, 48.02 can be written as (4 x 10) + (8 x 1) + (2 x 0.01).

Front

How do you convert expanded notation to standard form?

Back

To convert expanded notation to standard form, you add the values of each part together. For example, (6 x 100) + (4 x 1) + (8 x 0.1) equals 604.8.

Front

What is the value of the digit 5 in the number 78.25?

Back

The value of the digit 5 in 78.25 is 0.05.

Front

Which decimal is greater: 32.06 or 3.206?

Back

32.06 is greater than 3.206.

Front

How do you identify the greatest decimal among a set?

Back

To identify the greatest decimal, compare the whole numbers first, then the tenths, hundredths, etc. For example, among 32.06, 3.206, 2.791, and 37.5, 37.5 is the greatest.

Front

What does the digit 2 represent in the decimal 48.02?

Back

In the decimal 48.02, the digit 2 represents 0.02.

Front

How do you write 51.2 in expanded notation?

Back

51.2 can be written in expanded notation as (5 x 10) + (1 x 1) + (2 x 0.1).

Front

What is the standard form of (4 x 10) + (8 x 1) + (2 x 0.01)?

Back

The standard form is 48.02.

Front

What is the place value of the digit 8 in the number 48.02?

Back

The place value of the digit 8 in 48.02 is 8.

Front

How do you convert a decimal to a fraction?

Back

To convert a decimal to a fraction, write the decimal over its place value. For example, 0.25 is 25/100, which simplifies to 1/4.