KS2 Primary Maths Age 13-17 - Calculations: Written Multiplication - Explained

The video addresses a common error in math where students incorrectly multiply 213 by 0, resulting in 213 instead of the correct answer, 0. The instructor emphasizes that any number multiplied by zero is always zero, regardless of the initial number. This concept is crucial in understanding basic multiplication rules.

What is the result of multiplying any number by zero?

• One

• Infinity

• The original number

• Zero

If you have multiple 'nothings', what do you end up with?

• A large number

• The original number

• One

• Nothing

Why is it incorrect to say 213 * 0 equals 213?

• Because zero is not a valid number

• Because 213 is an odd number

• Because multiplying by zero always results in zero

• Because 213 is not a factor of zero

What should you remember about multiplying any number by zero?

• It always results in the original number

• It always results in zero

• It depends on the number

• It results in one

What is the final answer when multiplying 213 by zero?

• 213

• 2130

• Zero

• One