Question

I am having trouble with multiplying negative numbers and positive numbers

Answer 1

So, negatives are tricky. But here's a nice rule for it:

1). negative (-) times negative (-) is positive because like signs, when multiplied are always positive.

2). negative (-) times positive (+) is negative because, different signs, when multiplied, are always negative.

3). positive (+) times positive (+) is positive because, again, like signs, when multiplied, are always positive.

Let's do the first 2 together:

So -5 times 7. First, let's ignore the signs and do the numbers first. 5 * 7 = 35. Cool. Now lets do the signs. Since it's a negative times a positive, it'll be negative. So your answer is -35.

Now lets do -8 times -4. Ignore the signs. 8 * 4 = 32. Now the signs. It's negative times negative. So it'll be positive because like signs, when multiplied, will always be positive. So the answer to the second one is 32.

Hope this helps!!

Answer 2

Negative x Negative=Positive
Postive x Negative =Negative
1)-35
2)32
3)-21
4)-50
5)-48
6)32
7)-28
8)-45
9)-48
10)-24
11)-102
12)48
13)36
14)48