Thursday, September 23, 2010

adding and subtracting integers

(always start out with the bigger number, then subtract the smaller number to find the answer and add the bigger numbers -/+ to it. )

How to solve:
5+-8
you take eight and subtract five, and get three. then you add a negative (-) to the three because there were more negatives than posotives in this case. so the answer is: -3.
-4+10
You take 10 and subtract 4 and get 6.
4-9
You take 9 and take away 4 to get 5. then add a (-), in this case they were both posotive #s but the bigger number was being subtracted so the number was negative.
-8-(-9)
the rule for subtracting negatives is just to add the two negative numbers together to get an even bigger negative.


Here are the links to 3 screenshots i chose and screenshots from my scores:











Spreadsheet for math

http://bit.ly/adTQ9y
Heres my spreadsheet for Snowmobiles sold. Spreadsheets are helpful in math because you can see what is being sold and how many and when.

nascar integer game

score 112 player one won no screenshot

integer connect four game

player red won :) screenshots not working
i played countdown i couldnt get a screenshot on my computer but my score was 47