Scribe Post for November 13, 2008
Today in class checked our homework (green booklet pg. 5, 13-18) to make sure our answers are right. We spent most of the class on this. Since you already know the rules/theorem for multiplying integers, I will talk about the "new" thing we learned in class.
We learned what to do with questions like this:.bmp)
Since there is no sign between the -2 and the bracket, that means you have to multiply. To solve this question, put the -2 in brackets:
(-3).bmp)
Then solve the question like you would normally. Remember, there is an even number of negative integers in this question so the product will be positive.
(-3)%3D6.bmp)
The answer to this question is +6.
We also learned how to solve questions where the negative sign is outside the bracket. Like this:
(-3).bmp)
That negative sign, all by itself means -1. So the question will now look like this:
(2)(-3).bmp)
(-1)(2)= -2 . Now we answer the rest of the question:
(-3)%3D6+%232.bmp)
You can also do it this way:(-3)%3D6%232.bmp)
When you see a negative sign beside a bracket (uh-oh) you change the integer to a positive.
Well that's all for today. Remember, homework is the green booklet pg. 5, questions 19 - 36. I hope my pictures weren't too bad ;). I choose Elmane as the next scribe. Please leave comments. Thanks for reading!
11 Responses to " "
Anyways, you did good. You always do. :)
Good Job!
Well done! Good pictures. Your explainations were great and really clear. It felt like I was talking to you rather than reading your typing. Keep up the awesome posting! :)
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