a.

Did you know that the multiplication of 28 and 63 gives you 1764? This number has some interesting properties: it’s a perfect square, being . So, every time you multiply these two numbers, you’re also touching upon a lovely connection with the world of squares!

Now, if you ever need a quick way to multiply larger numbers, consider breaking them down into smaller parts. For our example, you could break 28 into and 63 into , and then use the distributive property: . This method can make complex calculations feel like a walk in the park!