Calculating a Percentage of a Whole Number: Solving 15% of 3,200

The video tutorial explains how to calculate 15% of a number by breaking it down into 10% and 5%. It starts by introducing the problem and the concept of percentages. The instructor then demonstrates how to calculate 10% of 3200 by dividing it by 10. Next, the video shows how to find 5% by taking half of the 10% value. Finally, the results are combined to find the final answer, which is 480.

What is the initial strategy suggested for calculating 15% of a number?

• Multiply the number by 15

• Break down 15% into 10% and 5%

• Divide the number by 15

• Add 10% and 5% directly

How do you calculate 10% of a number according to the video?

• Multiply the number by 0.1

• Divide the number by 10

• Subtract 10 from the number

• Add 10 to the number

What is the result of dividing 3200 by 10?

• 3200

• 3.2

• 32

• 320

How is 5% of a number calculated in the video?

• By dividing 10% by 2

• By adding 5 to 10%

• By multiplying 10% by 2

• By subtracting 5 from 10%

What is the final answer for 15% of 3200?

• 640

• 160

• 480

• 320