Adding and Subtracting Decimals Word Problems

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 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 importance of place value in decimals?

Back

Place value determines the value of each digit in a decimal number, affecting the outcome of addition and subtraction.

Front

If you have $20 and spend $2.15, how much do you have left?

Back

$17.85

Front

If you buy items costing $47.82 and $13.36, and pay with $100, how much change do you get?

Back

$38.82

Front

What is the total when you add 0.75 and 0.25?

Back

1.00

Front

If a file is 50.30 GB and the total size is 93 GB, how do you find the size of the second file?

Back

Subtract 50.30 from 93 to find the size of the second file: 93 - 50.30 = 42.70 GB.

Front

How do you calculate the remaining budget after purchases?

Back

Subtract the total cost of purchases from the initial budget.

Front

What is the result of 5.5 - 2.3?

Back

3.2