# 5.3 Multiplication and Division with Negative Numbers

Multiplying and dividing with negative numbers is an important skill to possess. Let’s go through a calculator exploration to investigate what happens when you multiply by negative numbers.

## Calculator Exploration—Multiplication with Negative Numbers The calculator can be accessed on the left-hand side bar under Toolkit.

### Activity: Multiplying Negative Numbers

Copy the following tables into your notebook. Then use the calculator to find the answers and see if you can spot any patterns that emerge.             #### Discussion

Take your time, and remember to enclose each negative number in parentheses.  8 8 4 4 0 0 4 4 8 8 12 12

In the first solutions column, the numbers are going down by four each time, and in the second solutions column, the numbers are increasing by four each time.

### Activity: What Happens Next?

Use the patterns in the tables to predict the answer to the next calculation in each sequence. Then, check your predictions using the calculator.

(a)  #### Discussion

What number comes next in the sequence of answers? (a) The next number in the sequence 4, 8, 12 is 16 and on the calculator .

(b)  (b) The next number in the sequence 4, 8, 12 is 16 and .