Calculating Percentages Using Methods

The video tutorial explains how to calculate 15% of 30 using two methods. The first method involves multiplying 15 by 30 and dividing the result by 100 to get 4.5. The second method calculates 10% of 30 by moving the decimal point, resulting in 3, and then taking half of that to get 1.5. Adding these two results also gives 4.5. The tutorial concludes with a brief summary.

What is the first step in finding 15% of 30 using the multiplication method?

• Subtract 15 from 30

• Add 15 to 30

• Divide 30 by 15

• Multiply 15 by 30

After multiplying 15 by 30, what is the next step to find 15% of 30?

• Subtract 100 from the result

• Divide the result by 100

• Multiply the result by 100

• Add 100 to the result

How do you calculate 10% of 30 in the alternative method?

• Divide 30 by 10

• Move the decimal one place to the right

• Multiply 30 by 10

• Move the decimal one place to the left

What is the next step after finding 10% of 30 in the alternative method?

• Take half of the result

• Subtract 5 from the result

• Add 5 to the result

• Double the result

What is the final result of 15% of 30 using either method?

• 6.5

• 5.5

• 3.5

• 4.5