Menu Math add/subtract decimals

Front

What is the process for calculating change when a customer pays with cash?

Back

To calculate change, subtract the total amount due from the amount paid by the customer. For example, if the total is $15.58 and the customer pays with $20, the change is $20 - $15.58 = $4.42.

Tags

CCSS.6.NS.B.3

Front

How do you calculate the total amount due including tax?

Back

To calculate the total amount due including tax, first find the subtotal (the price before tax), then multiply the subtotal by the tax rate to find the tax amount. Finally, add the tax amount to the subtotal. For example, if the subtotal is $15.58 and the tax is $1.75, the total is $15.58 + $1.75 = $17.33.

Tags

CCSS.6.RP.A.3B

Front

What is a subtotal in a transaction?

Back

A subtotal is the total amount of a sale before any taxes or additional fees are added. It represents the sum of all items purchased.

Tags

CCSS.6.NS.B.3

Front

What is the significance of tax in a sales transaction?

Back

Tax is a percentage of the sale price that is added to the subtotal to contribute to government revenue. It is important for calculating the final amount a customer must pay.

Tags

CCSS.6.RP.A.3C

Front

How do you determine the amount of tax from a subtotal?

Back

To determine the amount of tax from a subtotal, multiply the subtotal by the tax rate (expressed as a decimal). For example, if the subtotal is $15.58 and the tax rate is 7%, the tax amount is $15.58 * 0.07 = $1.09.

Tags

CCSS.6.RP.A.3D

Front

What is the formula for calculating change?

Back

The formula for calculating change is: Change = Amount Paid - Total Amount Due.

Tags

CCSS.6.NS.B.3

Front

What is the importance of understanding decimals in financial transactions?

Back

Understanding decimals is crucial in financial transactions as it allows for accurate calculations of prices, taxes, and change, ensuring that customers and businesses handle money correctly.

Tags

CCSS.6.RP.A.3B

Front

How do you add decimals when calculating totals?

Back

To add decimals, align the numbers by the decimal point and add as you would with whole numbers, carrying over any values as necessary. For example, to add $15.58 and $1.75, align them: 15.58 + 1.75 = 17.33.

Tags

CCSS.5.NBT.B.7

Front

What is the role of a tax table in calculating sales tax?

Back

A tax table provides the applicable tax rates for different types of goods or services, helping to determine the correct amount of tax to apply to a subtotal.

Tags

CCSS.6.RP.A.3B

Front

How can you verify the accuracy of your calculations in a transaction?

Back

To verify the accuracy of calculations, you can double-check each step, use a calculator, and ensure that all numbers are aligned correctly when adding or subtracting.