Grade 4 - Multiplication - Doubling and Halving

In this video, we explore the concept of doubling and halving as a multiplication strategy. This method simplifies complex multiplication by halving one factor and doubling the other, making the numbers easier to work with. We demonstrate how this technique can be applied, particularly when dealing with multiples of 5 or even numbers, and show how it can be repeated for further simplification.

While it's not the only strategy, doubling and halving can be a powerful tool for students, helping them choose the most efficient approach for different problems.