Real numbers

1.2b: Operations with Integers – Multiply and Divide with Different Signs There is a pattern to multiplying and recognizing this pattern can help assist you in doing the problem. When we have 2 x 2,...

Hello. I’m Professor Von Schmohawk and welcome to Why U. In the previous lecture we saw that exponentiation is shorthand for repeated multiplication. Any number "a" raised to the...

All right. We're going to solve some formulas for a specified variable here. And what I mean by that is we're going to have a formula like the one on the left, ax equal to b. And...

Here we're going to do out a few problems with subtracting signed numbers. So first of all, let's look at 5 minus 2. Well, we know that 5 minus 2 is equal to 3. And let's look...

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Complete this statement using less than or greater than-- that's what those symbols are-- for this kind of brackets there. So all they're asking is they have a 5 and they have a 2, and...

In these problems, we're going to multiply or divide signed numbers. So let's take a look first at the rule. If we multiply or divide 2 same signed numbers, we get a positive. If we...

(male narrator) In this video, we will look at the four basic operations that we can do with functions. This is mostly getting used to the new notation where when we see f plus g of x, this simply...

Hello. I’m Professor Von Schmohawk and welcome to Why U. In our lecture on the decimal number system we saw that decimal numbers can represent fractional quantities by adding a decimal point to the...

So now that you've completed your chart, lets take a look at the answers. Lets start out by looking at the numbers -1 and -9. They're both integer, and negative integer. Those are the...