decimal 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 multiply a decimal by a whole number?

Back

To multiply a decimal by a whole number, multiply as if there were no decimal, then place the decimal point in the product based on the number of decimal places in the original decimal.

Front

What is the process to divide a decimal by a whole number?

Back

To divide a decimal by a whole number, divide as if there were no decimal, 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 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 unit price?

Back

The unit price is the cost per single unit of a product, calculated by dividing the total cost by the number of units.

Front

How do you find the total cost when buying multiple items?

Back

To find the total cost, multiply the unit price of the item by the number of items purchased.

Front

What does it mean to scale a number?

Back

To scale a number means to multiply it by a certain factor, which can increase or decrease its value.

Front

How do you calculate the total distance run if you know the distance run on a previous day?

Back

To calculate the total distance run, multiply the distance run on the previous day by the scaling factor (e.g., 1.7 times as much).

Front

What is a word problem in mathematics?

Back

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