Decimal Addition and Subtraction

Front

What is the result of adding two decimal numbers?

Back

The result of adding two decimal numbers is the sum, which is calculated by aligning the decimal points and adding each column from right to left.

Front

How do you subtract decimal numbers?

Back

To subtract decimal numbers, align the decimal points, subtract each column from right to left, and borrow from the next column if necessary.

Front

What is the sum of 5.4 and 6.4?

Back

The sum of 5.4 and 6.4 is 11.8.

Front

What is the sum of 45.17 and 96.09?

Back

The sum of 45.17 and 96.09 is 141.26.

Front

What is the sum of 18.11 and 17.65?

Back

The sum of 18.11 and 17.65 is 35.76.

Front

What is the result of 41.6 minus 22.32?

Back

The result of 41.6 minus 22.32 is 19.28.

Front

What is the result of 98.562 minus 55.38?

Back

The result of 98.562 minus 55.38 is 43.182.

Front

What is the importance of aligning decimal points in addition and subtraction?

Back

Aligning decimal points ensures that each digit is added or subtracted from the correct place value, which is crucial for obtaining accurate results.

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.

Front

How do you handle carrying over in decimal addition?

Back

When the sum of a column exceeds 9, you carry over the extra value to the next column to the left.