On YouTube you can find videos where they teach you tricks to multiply. “Only for numbers under 100” they claim. Which is not true, of course, but what the heck.
It goes like this:
Then put the in the middle between the and the , then add the to the to make it and you have .
Keep it simple. Instead of learning a trick, perform the above operation in the understandable format
and you know what you’re doing.
So let’s look at .