Positive Times A Positive Equals

In that location are less rules when multiplying positive and negative numbers than in adding and subtracting positive and negative numbers. At that place are only three rules to retrieve:

Rule 1: A positive number times a positive number equals a positive number.

This is the multiplication you lot have been doing all along, positive numbers times positive numbers equal positive numbers.

For example, 5 10 3 = 15. 5 is a positive number, 3 is a positive number and multiplying equals a positive number: xv.

The answer is 5 ten 3 = fifteen.

Rule 2: A negative number times a positive number equals a negative number.

When you multiply a negative number to a positive number, your answer is a negative number. Information technology doesn't matter which order the positive and negative numbers are in that y'all are multiplying, the respond is always a negative number.

For example: -two x 4, which in essence is the same every bit -two + (-2) + (-2) + (-2)

Multiplying positive and negative numbers

The answer is -2 x four = -viii.

And as we said, if information technology's the other manner effectually iv 10 -ii, the answer is still the same: -8.

Multiplying Positive and Negative Numbers

The answer is iv 10 -2 = -eight.

Dominion 3: A negative number times a negative number, equals a positive number.

2 negatives make a positive, so a negative number times a negative number makes a positive number. If you await at it on the number line, walking backwards while facing in the negative management, y'all motion in the positive direction.

For example. -two ten -4 are both negative, and so nosotros know the answer is going to be positive.

The answer is -2 10 -4 = 8.

Hither's the overall rule to recall when multiplying positive and negative numbers:

2 similar signs make a positive sign: Multiplying Positive and Negative Numbers

Ii unlike signs make a negative sign: Multiplying Positive and Negative Numbers