Understanding Decimals and Their Values

Front

What is a decimal?

Back

A decimal is a number that includes a decimal point, which separates the whole number part from the fractional part.

Front

How do you round a decimal to the nearest tenth?

Back

To round a decimal to the nearest tenth, look at the hundredths place. If it's 5 or more, round up; if it's less than 5, round down.

Front

What is expanded notation?

Back

Expanded notation is a way to express a number by showing the value of each digit. For example, 4.205 can be expressed as 4 + 0.2 + 0.005.

Front

How do you compare two decimals?

Back

To compare two decimals, align them by the decimal point and compare digit by digit from left to right.

Front

What does it mean if a decimal is less than another?

Back

If a decimal is less than another, it has a smaller value. For example, 0.789 is less than 0.798.

Front

What is the value of the digit 2 in the decimal 4.205?

Back

In the decimal 4.205, the digit 2 is in the tenths place, representing 0.2.

Front

What is the sum of 23.7 and 45.3 when rounded to the nearest ten?

Back

The sum is estimated to be 80 when rounding 23.7 to 20 and 45.3 to 50.

Front

How do you express 0.456 in words?

Back

0.456 is expressed as four hundred fifty-six thousandths.

Front

What is the difference between 0.456 and 0.465?

Back

0.465 is greater than 0.456 by 0.009.

Front

What is the place value of 5 in the decimal 0.05?

Back

The place value of 5 in 0.05 is the hundredths place.