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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.
What do you get when you divide a positive number by a negative number?
A negative number is always the result.
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 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.
