Decimal 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 process to multiply decimals?

Back

To multiply decimals, multiply the numbers as if they were whole numbers, then count the total number of decimal places in both factors and place the decimal point in the product accordingly.

Front

How do you divide decimals?

Back

To divide decimals, move the decimal point in the divisor to the right to make it a whole number, and move the decimal point in the dividend the same number of places. Then divide as you would with whole numbers.

Front

What is the importance 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 average of a set of decimal numbers?

Back

To find the average, add all the decimal numbers together and then divide by the total number of values.

Front

What does it mean to split a bill evenly?

Back

Splitting a bill evenly means dividing the total amount by the number of people sharing the cost, so each person pays the same amount.

Front

How do you determine if a product of a decimal is greater or less than a whole number?

Back

To determine if a product of a decimal is greater or less than a whole number, multiply the decimal by the whole number and compare the result to the whole number.

Front

What is the relationship between multiplication and division of decimals?

Back

Multiplication and division of decimals are inverse operations; multiplying by a decimal less than 1 decreases the value, while dividing by a decimal less than 1 increases the value.