"The rectangle instagram grid has f***ing ruined my carefully curated account aesthetic i’m MAD," a third person didn't hold back. Swifties are less than impressed to see how this has impacted ...

Instagram is all about vertical content, and that might mean changing the look of your profile grid. A few days ago, Instagram head Adam Mosseri posted a story on his app detailing a change we've ...

Set up a 2 by 2 grid. For each rectangle on the grid multiply the numbers at the edge of the grid. Add up the areas of all the rectangles inside the grid. This gives the answer to the multiplication.

Division is the opposite of multiplying. The array method uses a rectangular grid for multiplication and division. Division can be used when splitting out the cost of a bill/item between people.