Decimal Word Problems

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form, where the denominator is a power of ten, and it is represented with a decimal point.

Front

How do you multiply a decimal by a whole number?

Back

To multiply a decimal by a whole number, multiply as if there are no decimals, then count the total number of decimal places in the decimal and place the decimal point in the product accordingly.

Front

What is the process for dividing a decimal by a whole number?

Back

To divide a decimal by a whole number, divide as if there are no decimals, then place the decimal point in the quotient directly above the decimal point in the dividend.

Front

How do you add decimals?

Back

To add decimals, align the numbers by the decimal point and add as you would with whole numbers, carrying over if necessary.

Front

What is the method for subtracting decimals?

Back

To subtract decimals, align the numbers by the decimal point and subtract as you would with whole numbers, borrowing if necessary.

Front

How do you convert a fraction to a decimal?

Back

To convert a fraction to a decimal, divide the numerator by the denominator.

Front

What is the significance of rounding decimals?

Back

Rounding decimals is important for simplifying numbers to make them easier to work with, especially in estimation and when precision is not critical.

Front

How do you find the total cost of multiple items with decimal prices?

Back

To find the total cost, add the prices of all items together, ensuring to align the decimal points.

Front

What is the formula for calculating the average of a set of decimal numbers?

Back

The average is calculated by adding all the numbers together and then dividing by the total count of numbers.

Front

How do you calculate change from a purchase?

Back

To calculate change, subtract the total cost of the purchase from the amount paid.