Adding and Subtracting Decimals Word Problems

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form. It uses a decimal point to separate the whole number part from the fractional part.

Front

How do you add decimals?

Back

To add decimals, align the numbers by the decimal point and add as you would whole numbers, placing the decimal point in the sum directly below the other decimal points.

Front

How do you subtract decimals?

Back

To subtract decimals, align the numbers by the decimal point and subtract as you would whole numbers, placing the decimal point in the difference directly below the other decimal points.

Front

What is the total of 3.74 and 9.8?

Back

13.54

Front

If a race is 22.01 kilometers and one runner runs 9.41 kilometers, how far does the other runner run?

Back

12.6 kilometers

Front

What is the size of a second file if the total size is 93 gigabytes and one file is 50.30 gigabytes?

Back

42.7 gigabytes

Front

If you have $58.90 and withdraw $25.00, how much do you have left?

Back

$33.90

Front

What is the change from $100 if you spend $47.82 and $13.36?

Back

$38.82

Front

What is the first step in solving a word problem involving decimals?

Back

Read the problem carefully to understand what is being asked and identify the numbers involved.

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.