**Multiplying integers: Positives and Negatives**

Today during class we learned how to multiply integers!

**Multiplying positives:**

We started off with a very simple question and it was:

(+4) x (+3)= 12

Figuring out the answer is simple if you write the question down first. In this case the question in L.A form would be 4 groups of 3. This means: 3+3+3+3= 12, this is called repeat addition (skip count).

Even if this is a simple question we have to model the question to show our work.

Remember to group your integer tiles! |

Lets practice on one more multiplying positive integers question.

(2)x(3)=6

2 groups of 3. 3+3=6

**Multiplying with negative and positive integers:**

(-4)x(3)=

To make this question easier you must write it down in words.

Negative 4 remove groups of positive 3. To remove something that isn't there you must use zero pairs, in this case you have to use 12 (=4x3).

Positive: Blue

Negative: Red

(-2)x(-3)= +6

Negative 2 remove groups of negative 3= positive 6

Remove 2 groups of negative 3:

video: http://www.youtube.com/watch?v=47wjId9k2Hs

To make this question easier you must write it down in words.

Negative 4 remove groups of positive 3. To remove something that isn't there you must use zero pairs, in this case you have to use 12 (=4x3).

Positive: Blue

Negative: Red

Now that you have your 4 groups of 3, like in what we wrote later we have to "remove 4 groups of positive 3".

**Negative x Negative multiplying.**(-2)x(-3)= +6

Negative 2 remove groups of negative 3= positive 6

Remove 2 groups of negative 3:

video: http://www.youtube.com/watch?v=47wjId9k2Hs

Great job on explaining and on your pictures. that's a great explanation, i really liked your pictures, they were very understandable and easy to read and very simple. great job, also add a video. Also remember to delete all those spaces at the bottom (I do that too) keep up the great work, i really liked it.

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