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 0.1 in terms of hundredths?

Back

0.1 is equivalent to 10 hundredths.

Front

What is the value of 0.25 in terms of tenths?

Back

0.25 is equivalent to 2.5 tenths.

Front

How do you convert a decimal to a fraction?

Back

To convert a decimal to a fraction, write the decimal over its place value (e.g., 0.75 = 75/100) and simplify if possible.

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 the result of 0.5 + 0.25?

Back

0.5 + 0.25 = 0.75.

Front

What is the result of 3.2 - 1.8?

Back

3.2 - 1.8 = 1.4.

Front

How do you handle carrying over in decimal addition?

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 result of 5.5 + 2.3?

Back

5.5 + 2.3 = 7.8.