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Multiplication or division of two numbers of opposite signs: negative*positive, positive*negative, negative/positive, and positive/negative.
Addition of two negative numbers: -5 + -2 = -7
Multiplying pure imaginary numbers of the same 'sign' : 5i * 2i = -10. -3i * -4i = -12.
Dividing pure imaginary numbers of different signs (this comes from the fact that 1/i = -i, and i/i = +1)
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Why does a negative number times a negative number produce a positive number?
Negative times negative is always a positive.
Is a positive number and a negative number will always be negative?
A positive number multiplied by a negative number will always result in a negative number.
When a negative number is subtracted from a positive number is the difference always positive?
Yes, a negative number subtracted from a positive number will always be positive. Subtracting a negative number is the same as adding the opposite of the negative number. The opposite of a negative number is always positive. A positive number plus a positive number is always positive.
Is a negative number plus a positive number always negative?
No.
What does a negative number plus a negative number equal?
A negative plus a negative still gives a negative answer.
Why does a negative number times a negative number produce a positive number?
Negative times negative is always a positive.
Is a positive number and a negative number will always be negative?
A positive number multiplied by a negative number will always result in a negative number.
How do you work out how to times a positive number by a negative number?
A positive number times a positive number will always get you a positive number A negative number times a negative number will always get you a positive number (same signs will get you a positive number) but A positive number times a negative number will always get you a negative number or A negative number times a positive number will always get you a negative number (different signs will get you a negative number)
When a negative number is subtracted from a positive number is the difference always positive?
Yes, a negative number subtracted from a positive number will always be positive. Subtracting a negative number is the same as adding the opposite of the negative number. The opposite of a negative number is always positive. A positive number plus a positive number is always positive.
When does a negative number plus a negative number equal a negative?
Always.
Is a negative number plus a positive number always negative?
No.
What do you get when you multiply a positive by a negative number?
When you multiply a positive number by a negative number you always get a negative number.
Do positive number turn into negative?
No, they cannot. The result of some operations on positive numbers can be negative.
Are nagative numbers always numbers decimal negative?
Any number, negative or positive, can be expressed as a decimal number. So a negative number can always be expressed as a negative decimal.
What do you get when you divide a positive number by a negative number?
A negative number is always the result.
What does a negative number plus a negative number equal?
A negative plus a negative still gives a negative answer.
Is a negative number add a negative number a positive or negative answer?
Adding two negative numbers always gives a negative number.
