Friends, everyone is here, and today I will share wonderful topics with you
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I don't really believe it
That's what you explain for the sake of explaining. A calculator is up to $20. Now a set of schools allows the purchase of teaching aids to start at a few hundred yuan.
This problem is easy to solve, and the state itself supervises and builds one
That's literary processing, and there's something called a hand-cranked counter
All the data left by the Soviets before they left was eaten by you?
At that time, it was also computer-aided, and it was not all hand-made drafts, you can see that the note with many holes used by Ye Wenjie in the three-body problem was used to interact with the computer at that time
The main reason is that I am afraid that the admission line score is low and it will not look good
There are some math problems that you can't win even with a calculator, and you won't be able to beat them up
The amount of numerical computation is not large, and the amount of analytic geometry is very large
If you don't want to use a calculator, then continue to teach the plan
Do the problem to make the root number three minus one, you can use parentheses to enclose the back is very likely to be able to approximate, if you use the calculator directly to become 0
Next, junior high school and high school, more algebra-based discussions, are all a bunch of xyz, what do you use a calculator to calculate, even if you want to be algebraic, the result is only one or two points
You're not alone in this country
So all kinds of disgusting numbers came, and it didn't save any time
It can be opened manually
In fact, the brain does not calculate, it only remembers. You think you're quick to do it just because you've memorized it
The weapons are so advanced, what do you have to train the infantry for?
The practical abacus verifies the data given by the Soviets, not the data with the abacus. The core data given by the Soviets at that time was different from the data we finally checked, and it was the same result after three calculations. Finally, we boldly used our own calculation data
That is, farmers should not use chemical fertilizers and pesticides for farming
Critically, computers were not reliable at that time
You can use it in Shanghai?
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More exciting inventory is yet to come
Past Highlights:
I thought about it very small but I didn't think it was so small, and I laughed at it in the comment area
How much can a blind date man pretend? Netizens shared chat records that exploded more than one another, refreshing my three views
Why was the Three Kingdoms period so chaotic, and no other country came to invade?