5th Grade Representing, Comparing and Rounding Decimals

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 compare decimals?

Back

To compare decimals, align the decimal points and compare each digit from left to right.

Front

What does rounding a decimal mean?

Back

Rounding a decimal means adjusting the number to the nearest specified place value, such as the nearest whole number or tenth.

Front

What is expanded notation?

Back

Expanded notation is a way of writing numbers to show the value of each digit. For example, 345 = (3 × 100) + (4 × 10) + (5 × 1).

Front

How do you write 38.59 in expanded notation?

Back

(3 × 10) + (8 × 1) + (5 × 0.1) + (9 × 0.01).

Front

What is the value of the digit 8 in the decimal 30.806?

Back

The value of the digit 8 is (8 × 0.01) or 0.08.

Front

How do you round 55.845 to the nearest hundredth?

Back

You look at the third decimal place (5) and round up, so 55.845 becomes 55.85.

Front

What is the greatest decimal in the set: 0.5, 0.75, 0.25?

Back

0.75 is the greatest decimal.

Front

How do you order decimals from greatest to least?

Back

Compare the decimals by their whole number part first, then the tenths, hundredths, etc., until you find the order.

Front

What is the decimal equivalent of 1/10?

Back

The decimal equivalent of 1/10 is 0.1.