KS2 Primary Maths Age 13-17 - Ratio, Proportion and Algebra: Number Sequences - Explained

The video tutorial explains a mathematical rule where a number is multiplied by two and then three is added. The instructor demonstrates this rule using the number 53, resulting in 109. To find a number that precedes 25 using the same rule, the instructor reverses the operations by subtracting three and dividing by two, arriving at 11. The process is verified to ensure accuracy, and the tutorial concludes with a summary of the steps and results.

What is the final answer after dividing 22 by 2?

How can you verify that the number 11 is correct after performing the operations?