Adding and Subtracting Decimals

Front

What is the process of adding decimals?

Back

To add decimals, align the numbers by their decimal points 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 their decimal points and subtract each column starting from the right, borrowing if necessary.

Front

What is the value of 1.37 + 0.5?

Back

1.87

Front

What is the result of 10.05 - 8.3?

Back

1.75

Front

How do you find the difference between predicted and actual values?

Back

Subtract the actual value from the predicted value to find the difference.

Front

What is 12.69 + 4.10?

Back

16.79

Front

What is 53.4 - 7.54?

Back

45.86

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 is the significance of carrying over in decimal addition?

Back

Carrying over is necessary when the sum of a column exceeds 9, ensuring that the next column is correctly adjusted.

Front

What does borrowing mean in decimal subtraction?

Back

Borrowing is the process of taking 1 from the next left column to help subtract a larger digit from a smaller digit in the current column.