KS2 Primary Maths Age 13-17 - Fractions, Decimals and Percentages: Multiplying Fractions - Explained

The video tutorial explains how to multiply 1 1/2 by 40 using a simple method. The teacher breaks down the problem by first multiplying 40 by 1, then calculating half of 40, and finally adding the results to get 60. The process is explained step-by-step, emphasizing the ease of working with fractions and the importance of understanding top-heavy fractions. The tutorial concludes with a mention of the marks awarded for solving the problem.

What is the first step in multiplying 1 1/2 by 40?

• Add 40 and 1/2

• Multiply 40 by 1/2

• Subtract 1/2 from 40

• Multiply 40 by 1

How do you calculate 40 multiplied by 1/2?

• Multiply 40 by 2

• Add 40 and 2

• Divide 40 by 2

• Subtract 2 from 40

What is the result of multiplying 40 by 1/2?

• 10

• 20

• 30

• 40

What is the final step in solving 1 1/2 multiplied by 40?

• Add 40 and 20

• Multiply 40 by 20

• Divide 40 by 20

• Subtract 20 from 40

What is the final result of 1 1/2 multiplied by 40?

• 60

• 70

• 50

• 40