Showing posts with label April 16. Show all posts
Showing posts with label April 16. Show all posts

Friday, April 16, 2010

Subtracting Integers .


Today in math we learned how to subtract integers.

5 - 2 =3




(-5) - (-3) = 2


Show using chips :
(-7) - (-3) =
3 - (-4) =
(-6) - 2 =

(-2) - (-5) =



This morning it was -2. This afternoon will be 3. Determine the difference of these temperatures.

Method 1)
Subtract the morning temperature from the after noon temperature.
3 - (-2) = 5

Method 2)
Subtract afternoon temperature from the morning temperature .
(-2) - 3= 5


Sorry if it's confusing, I tried my best to explain it :)