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 94 - 4.8?

Back

89.2

Front

What is the value of 2 - 0.43?

Back

1.57

Front

What is the value of 5.8 + 4.50?

Back

10.3

Front

What digit is in the ones place of the number 23.45?

Back

3

Front

What is the value of 7.9 - 3.47?

Back

4.43

Front

How do you identify the place value of a digit in a decimal number?

Back

The place value of a digit in a decimal number is determined by its position relative to the decimal point, with each position representing a power of ten.

Front

What is the importance of aligning decimal points when performing addition or subtraction?

Back

Aligning decimal points ensures that each digit is correctly placed in its respective value column, 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.