**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.

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:**

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

Zoe, you did a really good job on explaining it I understood very well, but next time you could add pictures to go along with your questions.

ReplyDeleteGood job, you explained it well but add picture to show your work and a video, also if you're multiplying (-4) x 3 it's not 'negative 4 remove groups of 3' it should be 'remove 4 groups pf 3' but good job explaining.

ReplyDeleteRemember to add pictures and put your sets into grouping circles!

ReplyDelete