L5 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 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 rounding a decimal mean?

Back

Rounding a decimal means adjusting the number to a nearby value that is easier to work with, usually to a specified place value.

Front

What is the nearest hundredth?

Back

The nearest hundredth is the second digit to the right of the decimal point.

Front

How do you round 0.028 to the nearest hundredth?

Back

0.028 rounded to the nearest hundredth is 0.03.

Front

What is the nearest tenths place?

Back

The nearest tenths place is the first digit to the right of the decimal point.

Front

How do you round 609,328.258 to the nearest tenths?

Back

609,328.258 rounded to the nearest tenths is 609,328.3.

Front

What is estimation in addition?

Back

Estimation in addition involves rounding numbers to make them easier to add mentally.

Front

Estimate the sum of 31.12 + 4.78 + 17.63 by rounding to the nearest whole number.

Back

The estimated sum is 31 + 5 + 18 = 54.

Front

What symbol is used to compare decimals?

Back

The symbols used to compare decimals are > (greater than), < (less than), and = (equal to).