Rounding and Comparing Decimals

Front

What is rounding in mathematics?

Back

Rounding is the process of adjusting the digits of a number to make it simpler while keeping its value close to what it was. For example, rounding 4.6 to the nearest whole number gives 5.

Front

How do you round a decimal to the nearest whole number?

Back

To round a decimal to the nearest whole number, look at the digit in the tenths place. If it is 5 or greater, round up. If it is less than 5, round down.

Front

What does it mean to compare decimals?

Back

Comparing decimals involves determining which decimal is greater, less than, or equal to another decimal.

Front

What symbol is used to show that one number is greater than another?

Back

The symbol '>' is used to indicate that one number is greater than another.

Front

What symbol is used to show that one number is less than another?

Back

The symbol '<' is used to indicate that one number is less than another.

Front

What symbol is used to show that two numbers are equal?

Back

The symbol '=' is used to indicate that two numbers are equal.

Front

How do you compare 0.75 and 0.8?

Back

0.75 is less than 0.8, so we write 0.75 < 0.8.

Front

How do you round 3.14 to the nearest whole number?

Back

3.14 rounds to 3 because the digit in the tenths place (1) is less than 5.

Front

What is the first step in comparing decimals?

Back

The first step is to align the decimal points of the numbers being compared.

Front

If you have 2.5 and 2.50, how do you compare them?

Back

2.5 and 2.50 are equal because they represent the same value.