Multiplications and divisions are really just many additions and subtractions.

乘法和除法实际只是法和减法的累积。

You still could do your multiplication tables.

你仍旧是能够做乘法的。

For example, you're not doing your multiplication tables.

比如说 你就没在做乘法。

Dividing and multiplying, that's kinda hard for me.

除法和乘法，这对我来说有点难。

This multiplication table will help you.

这个乘法表会对你有帮助。

They're still trying to learn how to do their multiplication tables, you know.

他们还在力习如何做乘法表。

And look at this one with the multiplication, little more complicated, right?

再看这个乘法稍稍复杂了点，是吗？

Where do you stand on addition, subtraction, multiplication and division?

你的法与减法乘法与除法是什么情况？

Do you know if he'll be doing the full color octet calculations?

你知道他会不会教用矩阵乘法做八色胶子运算吗？

Mathematically, this is basically a lot of multiplication.

从讲，这基本是大量的乘法运算。

In math, students need to do simple multiplication and geometry.

在方面，生需要做简单的乘法和几何运算。

Or the slide rule, for assisting with multiplication and division.

或者计算尺，用于辅助乘法和除法。

Mary did not. She only knew her tables as far as six times twelve.

玛丽不知道，她的乘法表只到了6乘12。

It has a capability of solving over 24,000 multiplications per second!

它能同时处理超过 24000 笔的乘法运算而且，仅需一秒。

With some clever mechanical tricks, the Step Reckoner was also able to multiply and divide numbers.

利用一些机智的机械技巧 莱布尼茨乘法器也能够乘和除。

I've never done this, so...four times table in base twelve. OK.

我从来没这么做过，所以… … 在十二进制里的四倍乘法表。好的。

Some times tables work more nicely in base twelve, some work more nicely in base ten.

有些乘法表在使用十二进制时运用得更好，有些是使用十进制时运用得更好。

Now, if we know our 12 times tables we know that this is equal to 108.

如果我们知道 12 的乘法表，那么我们就知道这个等于 108。

But it will also provide an opportunity to teach the kids more than multiplication tables and reading assignments.

但这也提供了一个机会，不再只是教孩子们乘法表和阅读作业。

Notable among these devices was the Step Reckoner, built by German polymath Gottfried Leibniz in 1694.

在这些机器中，莱布尼茨乘法器格外着名 它由德国博家戈特弗里德·莱布尼茨于1694年建造。