Multiplying and Dividing Integers - Sept 15th

Topics for Today:

We moved on to multiplying and dividing integers today.

Some basic sign rules for multiplication and division:

+ · + = +      + / + = +

+ · - = -      + / - = -

- · + = -      - / + = -

- · - = +      - / - = +

Stated a different way, when we multiply two integers with the same sign, we get a positive product; when we multiply two integers with different signs, we get a negative.  The same rules apply for division.  Many students find multiplying and dividing integers to be much easier than adding and subtracting!

Vocabulary:

Sections Covered in Textbook:

1-8: Multiplying and Dividing Integers (pages 45-49)

Resources & Tutorials:

1) How do you multiply and divide numbers with different signs?
2) What are Multiplicative Inverses?
3) What is a reciprocal?

Assignments:

Multiplying and Dividing Integers Worksheet

Extras: