MATH TRICK
1. Grab a calculator (you won't be able to do this on in your head)
2. Key in the first 3 digits of your phone number (NOT THE AREA CODE)
3. Multiply by 80
4. Add 1
5. Multiply by 250
6. Add the last 4 digit of your phone number
7. Add the last 4 digit of your phone number again
8. Subtract 250
9. Divide number by 2
DO YOU RECOGNIZE THIS ANSWER?
2 comments:
I really grabbed one calculator to follow the steps without thinking at all when one of my friends sent this to me. And after tried twice, both worked right. I thought it's cool stuff. Then without thinking carefully, I sent to Jack, who immediatelly gave me back the spoiler, Not that amazing at all, right?
I stopped, and thinking about myself. What's wrong? why i couldn't get it at the frist time? It's really the difference between WenKe and LiKe? It might be, but not the only reason.
Thinking plays a role here. For a long time, I rushed to the result, to the destination, even without stopping to think. Knowledge, skills and experiences learned from the past might not benefitial if we do not connnect them to the new situation, or i should say if we do not connect the new learning to the past experiences and previous knowledge, the learning will not happen as it should be.
I knew this, but why I made the same mistake today? or it might not neccesary a mistake, but it definitely a passive learning.
got chance to talk to wisdom, who told me that she tried the paper and pencil for it rather than the calculator, because she's too lazy to get up to get the calculator. In the middle of the calculation, she realzied the pattern.
Thanks for the laziness, that's what i want to say.
I did twice because the calculator is so easy to count, no need think hard. If I used the paper and pencil, I would be better? Maybe.
We heard the dicussion about the american students' math is not as good as asian students' math. Is it really true firstly? and why? I'm wondering whether the technology did play an essential role here. Does technology delimish our thinking ability?
I know I'm looking for the excuse for my incompetent of logic thinking. :P
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