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 17 - 8.63?

Back

8.37

Front

What is the sum of 3.86 and 0.98?

Back

4.84

Front

What is 3.9 + 5.04?

Back

8.94

Front

How do you handle whole numbers when adding decimals?

Back

When adding a whole number to a decimal, treat the whole number as a decimal by adding a decimal point and two zeros (e.g., 19 becomes 19.00).

Front

What is the result of 15.98 + 19?

Back

34.98

Front

What is the difference when subtracting 76.31 and 48.55?

Back

27.76

Front

Why is it important to align 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

What is a common mistake when adding or subtracting decimals?

Back

A common mistake is misaligning the decimal points, which can lead to incorrect sums or differences.