Adding & 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 total cost of items when adding decimals?

Back

The total cost is found by adding the prices of all items together.

Front

If you pay with a larger bill than the cost of an item, how do you calculate change?

Back

Subtract the total cost of the item from the amount paid to find the change.

Front

What is the difference between two decimal numbers?

Back

The difference is found by subtracting the smaller number from the larger number.

Front

How do you handle carrying over when adding decimals?

Back

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

Front

What is the importance of aligning decimal points when performing operations?

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.

Front

How do you convert a dollar amount to cents?

Back

Multiply the dollar amount by 100 to convert it to cents.

Front

What is the total cost of multiple items if each item has a different price?

Back

Add the individual prices of each item to find the total cost.