Monday, October 27

Subtracting Integers

Today in class we learned how to subtract integers. The thing is, you

For example. (-1) - (+1)

In order to make this correct, you must change the subtraction sign (-) to a plus sign (+).

Then, you change the (+1) to a (-1)

You start with this... (-1) - (+1)

And end up with this... (-1) + (-1) = good! :]

**DON'T**subtract them, you

*add the opposite.*For example. (-1) - (+1)

**THIS IS WRONG!!**In order to make this correct, you must change the subtraction sign (-) to a plus sign (+).

Then, you change the (+1) to a (-1)

You start with this... (-1) - (+1)

And end up with this... (-1) + (-1) = good! :]

**Actually it equals (-2)**

**Always remember! Don't change the first integer! Only change the subtraction sign (-) to a plus sign (+). Then you change the second integer to it's opposite. Which in this case would be****(+1) to (-1).**

Integer TilesInteger Tiles

**You use integer tiles to help you figure out the answers when you add integers.**

**(+4) + (-3)=? (Remember the red tiles are positive, the white ones are negative!)****So, since there is only one left, the answer is (+1).****Homework**

Today for homework we have to do page 46 in the yellow book. Make sure you remember to do three of the questions using integer tiles!

Next scribe : RAYNA! xP

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