KS2 Primary Maths Age 13-17 - Ratio, Proportion and Algebra: Percentage Problems - Explained

The video tutorial explains how to calculate 15% of 440 by breaking it down into simpler steps. It clarifies that 'times' in this context means 'of', and demonstrates how to find 10% and 5% of 440 separately. The tutorial concludes with the correct answer and emphasizes the importance of understanding the terminology used in percentage problems.

What is the common mistake students make when interpreting '15% times 440'?

• They multiply 15 by 440 directly.

• They divide 440 by 15.

• They add 15 to 440.

• They subtract 15 from 440.

How can you quickly find 10% of a number?

• Subtract 10 from the number.

• Multiply the number by 10.

• Divide the number by 10.

• Add 10 to the number.

What is 10% of 440?

• 40

• 45

• 44

• 50

How do you calculate 5% of a number if you know 10%?

• Double the 10% value.

• Subtract 10% from the number.

• Halve the 10% value.

• Add 10% to the number.

What is the final result of calculating 15% of 440?

• 60

• 66

• 64

• 70