Adding and Subtracting Decimals

Front

What is the process of adding decimals?

Back

To add decimals, align the numbers by the decimal point and add each column starting from the right, carrying over if necessary.

Front

How do you subtract decimals?

Back

To subtract decimals, align the numbers by the decimal point and subtract each column starting from the right, borrowing if necessary.

Front

What is the value of 0.1 + 0.2?

Back

0.3

Front

If you have 5.5 - 2.3, what is the result?

Back

3.2

Front

What is the importance of aligning decimal points when performing addition or subtraction?

Back

Aligning decimal points ensures that each digit is in the correct place value, which is crucial for accurate calculations.

Front

How do you convert a fraction to a decimal?

Back

To convert a fraction to a decimal, divide the numerator by the denominator.

Front

What is the result of 12.5 + 7.75?

Back

20.25

Front

If a product costs $3.50 and you pay with a $10 bill, how much change will you receive?

Back

$6.50

Front

What is the difference between 8.9 and 3.4?

Back

5.5

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 is 5 or greater, round up, otherwise round down.