Squaring three-digit numbers is one of the most impressive mental math calculations, and it doesn’t take a whole lot of effort after you’ve mastered two-digits. It’s like the difference between juggling three balls and five balls. Most folks (with a bit of practice) can juggle three balls. Five objects, however, is a whole other story (and WOW factor).
Once you get the hang of squaring two-digit numbers, three-digit numbers aren’t so hard, but you have to keep track as you go along. Don’t get discouraged if you feel a little lost. It’s just like anything you try for the first time… when you’re new at something, in the beginning you aren’t very good at it. But with practice, these steps will become second nature and you’ll be able to impress your friends, relatives, and math teachers.
The video below has two parts:
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I really like your Math sections..I never liked math in school…But I love all the math ideas that you have posted..Great new facelift to all the units..We started in December and just love your program…My boys can’t wait to do science everyday..My husband is an aerospace engineer and loves making the science projects with our boys, from the hovercraft to pop rockets to the glowing slime….We are all hooked on your program….Thanks for making a great science site that makes teaching science fun…
Ta DAH!! Voi-LAH!! Zippidee-doo-dah, zippidee-YAY!
It works from the link you sent (…/math) as well as from the link in the sidebar. THANK YOU!!
So, you did this by yourself? Aurora, ya know that analogy of the three balls and the five balls in juggling, when you were explaining how you can learn to compute with increasing numbers of digits? In your juggling act: One ball is Supercharged Science/E-Science, another is MegatonMath (or whatever) that needs to be developed and born, and another I’m thinking is website construction and maintenance. Who knows what four and five are? I realize you have your hands full, but sheesh. Hm. I should have said the first ball is your family. LOTS of people (our family, for one) would sign right up to learn website construction and maintenance from you in this type of format that you have going with SS. Even if you didn’t do this little video doo-hickey-trick-thing by yourself so lickety-split, what about gathering some people who do it, and formatting a website full of videos and instructions…hey, just a thought. Because your business is completely brilliant, Aurora. It starts with you wanting to serve people, and that’s what’s in the middle and at the end, and you just take what God gave you, and the whole thing is filled with generosity and expertise and love for whatever person is watching…we tell everyone about you.
Well, we’re off to learn about squaring bigger numbers now. Our kids have been playing with the multiplying two and three digit numbers by eleven every chance they get for the past day and a half, and also with repulsive and attractive magnetic force fields. Life is GRAND, you’re one of a kind, you treat everyone else knowing that they are, too, and we’re grateful!
God bless you immensely.
Love,
Helen and the Dallmans
Hmmm – it just looks like the titles are confusing, but the videos that are after the titles are correct. In the video on Squaring Bigger Numbers, it shows how to square bigger numbers quickly, which is a different video from Multiplying and Adding Quickly. Sorry for the confusion!
Aurora
P.S. It would be so much fun to make a math site! If I had the time, it would definitely be on my project list… 🙂 Can you tell I never liked math much? (It’s true!) Not until I learned what it was all for did I really start to like the stuff… and these videos are quick snippets of what I teach the kids during our breaks at our science workshops (it’s really funny, because by the second day of the workshops I teach, the kids are BEGGING do to math in their spare time between science labs!)
Uh-oh…
Your link says “Squaring Bigger Numbers” and the title says “How to Square Bigger Numbers Faster in Your Head” but the video is actually that of the “Quick Calcs in Your Head” link, with the title of “How to Add…Faster in Your Head” or something like that. So we don’t have the video for squaring bigger numbers here.
We would love to see it! We’re loving this website, and very thankful that you sent us the link for it! This math stuff is super, and may I suggest that if your day ever stretches to about 67 hours in it, you might have time to make a MegaTonMath website just as loaded as the SS site? (We’d join…)