Decimal Addition and Subtraction

Front

What is decimal addition?

Back

Decimal addition is the process of adding numbers that have decimal points, aligning the decimal points before performing the addition.

Front

What is decimal subtraction?

Back

Decimal subtraction is the process of subtracting one decimal number from another, ensuring the decimal points are aligned.

Front

How do you align decimal points in addition?

Back

When adding decimals, write the numbers one under the other, aligning the decimal points to ensure each digit is in the correct column.

Front

What is the result of 22.17 - 17.4?

Back

4.77

Front

What is the result of 56.11 + 12.3?

Back

68.41

Front

What is the result of 11.8 - 2.9?

Back

8.9

Front

What is the result of 6.12 - 5.98?

Back

.14

Front

What is the result of 5.69 - 3.21?

Back

2.48

Front

What is the importance of zero in decimal addition?

Back

Zero is used as a placeholder in decimal addition to maintain the correct value of the numbers being added.

Front

What is a common mistake in decimal subtraction?

Back

A common mistake is not aligning the decimal points, which can lead to incorrect results.