Notesale: Turn your study into money

Document Preview

Extracts from the notes are below, to see the PDF you'll receive please use the links above

---

Multiplying positive and negative numbers | Pre-Algebra |
If I multiply a negative times a positive times a negative, I'm going to get a negative
...
One of these two numbers is
negative
...
Or another way to think about it is if I had
2 times 3, I would get 6
...
And that's going to give me a positive number
...
I encourage you to try them out before I
do them
...
Your product is going to be positive
...
The negative is 5 times 10 times negative 10
...
Negative times a negative are negative times negative is negative
...


Multiplying numbers with different signs | Pre-Algebra |
When we multiply three numbers, some are going to be positive and some are going to be
negative
...
A negative
number multiplied by a negative number is going to be a negative
...


Adding/subtracting negative numbers | Pre-Algebra |
Negative numbers are actually smaller numbers than positive numbers
...
Negative 50 is actually even a smaller number than negative 20
because it's even further to the left of negative 20
...
Sometimes when you start, you feel like 50 is a bigger number than 20, but it's a
negative 50
...
Negative 3 plus 5 is also equal to 2
...
The difference between 12 and 5 is 7, but the numbers are that far apart, but now
we're starting with the lower number
...
So let's just do a ton of problems
...
I know I'm probably confusing you, but practice is what's going to really
help us
...
I recommend that you just
do the modules, because the modules have a nicer graphic than anything I could draw on this
chalkboard
...




---