KS2 Primary Maths Age 9-13 - Calculations: Written Multiplication - Explained

The video tutorial explains the process of multiplying numbers, starting with single digits (5 * 7 = 35) and then moving to larger numbers (50 * 70). It highlights the importance of zeros in multiplication, showing how multiplying tens involves adding zeros to the result. The tutorial concludes with the final answer of 3500 and mentions the marks awarded for the correct answer.

What is the result of multiplying 5 by 7?

• 45

• 30

• 35

• 40

When multiplying 50 by 70, what is the significance of the zeros?

• They are ignored in the calculation.

• They indicate the number of times to multiply.

• They contribute to the final number of zeros in the answer.

• They are placeholders with no value.

What is the result of multiplying 10 by 10?

• 10000

• 100

• 10

• 1000

How many zeros are in the final answer of 50 times 70?

• One

• Four

• Two

• Three

What is the final result of multiplying 50 by 70?

• 35000

• 350000

• 3500

• 350