Understanding Gas Cost Calculation

The video tutorial explains how to calculate the total cost of purchasing gas by multiplying the number of gallons by the cost per gallon. It demonstrates the use of the commutative property in multiplication and highlights the importance of decimal places in the calculation. The tutorial provides a step-by-step guide to multiplying numbers and concludes with rounding the result to the nearest cent, ensuring the final cost is accurate.

What is the first step in calculating the total cost of gas?

• Subtract the cost per gallon from the number of gallons.

• Multiply the number of gallons by the cost per gallon.

• Divide the number of gallons by the cost per gallon.

• Add the number of gallons to the cost per gallon.

Which mathematical property is used to rearrange the multiplication order?

• Distributive Property

• Associative Property

• Identity Property

• Commutative Property

How many decimal places should the product have when multiplying 2.749 by 12?

• Two

• Three

• Four

• One

What is the result of multiplying 2 by 9 in the multiplication process?

• 20

• 18

• 22

• 16

What is the next step after recording the partial products in multiplication?

• Add the partial products.

• Divide the partial products.

• Multiply the partial products.

• Subtract the partial products.

What is the sum of 5 and 7 in the addition process?

• 13

• 10

• 11

• 12

How many decimal places do you move to the left to get the final product?

• Two

• Four

• One

• Three

To which place value do you round the final result?

• Hundredths

• Tens

• Thousandths

• Units

What is the final rounded cost of the gas?

• $33.00

• $32.99

• $32.97

• $32.98

Why is it common to round the final cost to the nearest cent?

• To simplify the calculation.

• To decrease the total cost.

• To match the standard currency format.

• To increase the total cost.