Adding and Subtracting Decimals

Front

What is a decimal?

Back

A decimal is a fraction whose denominator is a power of ten, represented with a decimal point. For example, 0.5 is a decimal representation of 5/10.

Front

How do you align decimals when adding or subtracting?

Back

When adding or subtracting decimals, align the numbers by their decimal points to ensure that each digit is in the correct place value.

Front

What is the result of 9.43 - 3.34?

Back

6.09

Front

What is the result of 2.98 + 5.3?

Back

8.28

Front

What is the result of 7.05 - 4.6?

Back

2.45

Front

If Kelly has $20 and spends $2.15 and $6.58, how much does she have left?

Back

$11.27

Front

What is the result of 21 + 4.09?

Back

25.09

Front

What is the first step in adding decimals?

Back

The first step is to align the decimal points of the numbers being added.

Front

What is the first step in subtracting decimals?

Back

The first step is to align the decimal points of the numbers being subtracted.

Front

What does it mean to 'borrow' in subtraction of decimals?

Back

'Borrowing' in subtraction means taking 1 from the next left digit to help subtract a larger digit from a smaller one.