Percentage Calculation Techniques

In this video, Josh from Tech Math Channel introduces a simple method for solving percentage questions. He demonstrates how to break down percentages into manageable parts using the example of calculating 60% of 42. Viewers are encouraged to solve practice problems on their own, with solutions provided for 30% of 61, 90% of 860, and 45% of 18. The video concludes with a call for feedback and support.

What is the first step in solving a percentage problem according to the video?

• Ask a friend

• Guess the answer

• Break down the percentage into simpler parts

• Use a calculator

How is 50% of a number calculated?

• Divide the number by 2

• Subtract 50 from the number

• Multiply the number by 2

• Add 50 to the number

What is the result of 10% of 42?

• 4.2

• 42

• 0.42

• 420

What is the final result of 60% of 42?

• 24.2

• 25.2

• 26.2

• 27.2

What is the first step in solving 30% of 61?

• Calculate 5% of 61

• Calculate 10% of 61

• Calculate 50% of 61

• Calculate 100% of 61

What is 10% of 61?

• 0.61

• 16.1

• 61

• 6.1

What is the final result of 30% of 61?

• 18.3

• 19.3

• 17.3

• 16.3

How is 90% of a number calculated in the video?

• Multiply the number by 0.9

• Add 10% to the number

• Divide the number by 0.9

• Subtract 10% from the number

What is 10% of 860?

• 86

• 0.86

• 8.6

• 860

What is the final result of 90% of 860?

• 774

• 754

• 784

• 764