KS2 Primary Maths Age 13-17 - Ratio, Proportion and Algebra: Finding Missing Numbers - Explained

The video tutorial explains how Stefan completes a subtraction calculation of 95 minus 67, resulting in 28. It then describes how to verify the subtraction using addition, by adding 28 and 67 to get 95. An alternative method for verification is also discussed, involving arranging numbers in boxes. The tutorial concludes with a note on the marks awarded for the question.

What is the alternative way to check the subtraction using boxes?

What is the final conclusion about Stefan's calculation?