Multiply: 16 x 200
Date: Tue, 6 Dec 94 14:54:09 PST From: blair crawford Subject: math Dear Dr. math, I want to know the answer to the problem sixteen times two hundred. Blair
Date: Tue, 6 Dec 1994 23:59:37 -0500 (EST) From: Dr. Sydney Subject: Re: math Dear Blair: Hello there! Thanks for writing to Dr. Math. I don't know how much you have worked with multiplication, but I can tell you a little trick that may help you with this problem. 200 is just 2 times 100 right? Have you ever noticed that when you multiply a whole number by 100 all you do is tack on two zeroes at the end? Well, to find out what 16 x 200 is, we can find out what 16 x 2 is, and then multiply by 100 (or just tack on those extra 0's). So, what is 16 x 2? That's the same as 16 + 16, right? And, 16 + 16 is 32. So, 16 x 2 is 32. So, 16 x 200 is 3200 (we just tacked on two extra zeroes) Does that make sense? It's a different way of looking at multiplication than you may be used to, but I hope it helps. Write back with any other questions. Sydney
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