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 95.36 + 45.5?

Back

The value is 140.86.

Front

What is the result of 168 + 45.2?

Back

The result is 213.2.

Front

Calculate 42.1 - 6.9.

Back

The result is 35.2.

Front

What is 132.5 - 45.3?

Back

The result is 87.2.

Front

What is the sum of 84.79 and 34.45?

Back

The sum is 119.24.

Front

Why is it important to align decimal points when adding or subtracting?

Back

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

Front

What should you do if the numbers have different decimal places?

Back

You can add zeros to the number with fewer decimal places to make them equal before performing the operation.

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 results.