Decimal Addition and Subtraction

Front

What is the result of adding 13.67 and 14.6?

Back

The result is 28.27.

Front

How do you add two decimal numbers, such as 45.17 and 96.09?

Back

Align the decimal points and add as you would with whole numbers, carrying over as necessary. The result is 141.26.

Front

What is the sum of 5.4 and 6.4?

Back

The sum is 11.8.

Front

How do you subtract decimals, for example, 8.6 - 4.5?

Back

Align the decimal points and subtract as you would with whole numbers. The result is 4.1.

Front

What is the result of 98.562 minus 55.38?

Back

The result is 43.182.

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

What is a common mistake when adding or subtracting decimals?

Back

A common mistake is not aligning the decimal points, which can lead to incorrect results.

Front

How can you check your work after performing decimal addition or subtraction?

Back

You can check your work by reversing the operation (e.g., subtracting the sum from one of the original numbers) or using estimation.

Front

What is the process for adding multiple decimal numbers together?

Back

Add them two at a time, aligning the decimal points, or use a column method to keep track of the sums.

Front

What is the difference between addition and subtraction of decimals?

Back

Addition combines values to find a total, while subtraction finds the difference between values.