Yummy. Such a simple, yet satisfying meal. Today went well. Tomorrow is the first Game Night.
For my classes, I have a question. Do you know any good number tricks? If so, please share them. The students love them and I only have about 3. So any you know, would help! Thanks!
Here's mine. (thanks to cousin Diana!)
Telephone Magic
1. Key in the first 3 digits of your phone number (not the area code).
2. Multiply by 80.
3. Add 1.
4. Multiply by 250.
5. Plus the last 4 digits of your phone number.
6. Plus the last 4 digits of your phone number again.
7. Subtract 250.
8. Divide by 2.
See your answer? Cool huh?
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5 comments:
This isn't really a trick but more of a shortcut. If you want to check whether a number is evenly divisible by 9, add up the digits of the number. If the sum of the digits is not a one digit number then sum the digits again. Keep doing it until you get a one digit answer. If the number is divisible by 9 then the one digit will always be 9. Similarly, if the once digit answer is 3,6,or 9 then the number is divisible by three.
Lets take 43812
4+3+8+1+2 = 18
1+8 = 9
43812/9 = 5368
How about 43809
4+3+8+0+9 = 24
2+4 = 6
It's divisible by three.
PS If you want to stop these annoying spam blog comments, just turn on "show word verification" in te comments setting for your blog.
WOW, thats a lot of spam in one post. Crazy! Anyways thanks for visiting my blog. I am super excited for hockey to be back that is why we have NHL Centre Ice so we wont miss a thing:)
I've been getting tons of spam lately myself.
And that number trick is pretty neat!
This is basically the first (and last) of my spam comments. I have seen the word verification, but had decided I didn't really need it. But this ticks me off.
Mike- Thanks for the divisibility by 9 rule. I am pretty sure there is a similar one for 11, only you add every other digit.
That is an awesome trick!!
I love it.
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