Adding and Subtracting Decimal Word Problems

Front

What is a decimal?

Back

A decimal is a number that includes a decimal point, which separates the whole number part from the fractional part. For example, 3.14 is a decimal.

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 cost if you buy a toy for $12.50 and a book for $8.75?

Back

$21.25

Front

If a bakery sold 3.25 kg of bread in the morning and 2.5 kg in the afternoon, how much bread did they sell in total?

Back

5.75 kg

Front

If Ms. Kingery's fish tank had 35.25 liters of water and she used 12.5 liters, how much water is left?

Back

22.75 liters

Front

Andrew had $15.80 and spent $7.25 on hot chips. How much money does he have left?

Back

$8.55

Front

Cameron and Leo's Lego building company earned $250.75 on Monday and $180.50 on Tuesday. How much did they earn in total?

Back

$431.25

Front

What is the importance of aligning 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.

Front

What is a word problem in mathematics?

Back

A word problem is a mathematical problem that is presented in the form of a story or real-life scenario, requiring interpretation and problem-solving.