Decimal Operations

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 mean?

Back

Rounding means adjusting a number to make it simpler but keeping it close to the original value.

Front

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

Back

Look at the digit to the right of the decimal point. If it's 5 or more, round up; if it's less than 5, round down.

Front

What is the value of the digit in the tenths place in the decimal 3.76?

Back

The value of the digit in the tenths place is 7.

Front

What is the value of the digit in the hundredths place in the decimal 4.58?

Back

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

Front

How do you add decimals?

Back

Align the decimal points and add as you would with whole numbers, placing the decimal point in the answer directly below the other decimal points.

Front

How do you subtract decimals?

Back

Align the decimal points and subtract as you would with whole numbers, placing the decimal point in the answer directly below the other decimal points.

Front

What is the difference between 5.2 and 2.75?

Back

The difference is 2.45.

Front

What is the sum of 1.5 and 2.3?

Back

The sum is 3.8.