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 12.34 + 9.56?

Back

21.90

Front

What is the difference between 32.55 and 16.90?

Back

15.65

Front

If Susan spends $79.99 on a drum set and $54.99 on a keyboard, what is her total expenditure?

Back

$134.98

Front

How do you calculate change from a purchase?

Back

To calculate change, subtract the total cost from the amount given to the clerk.

Front

What is 561 - 12.34?

Back

548.66

Front

If I buy a shirt for $14 and jeans for $59.95, what is the total cost?

Back

$73.95

Front

What is the importance of aligning 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 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.