to subtract an integer, add its opposite or additive inverse.
Subtract the number you first thought of.
what's 8+15=
Adding two numbers with different signs means subtracting the two absolute integers (without sign) and vice versa.
You subtract the smaller from the larger.
to subtract an integer, add its opposite or additive inverse.
Subtract and the Keep the sign of the one that has more
Subtract the number you first thought of.
what's 8+15=
Adding two numbers with different signs means subtracting the two absolute integers (without sign) and vice versa.
You subtract the smaller from the larger.
ADDING: same sign, add and keep that sign. opposite sides, subtract their absolute values and use the sign of the number with the larger absolute value SUBRTRACTING: change the sign of the subtrahend (2nd number) then ADD using rules above.
To add two integers with opposite signs . . . -- Ignore the signs, and write the difference between the two numbers. -- Give it the same sign as the larger original number has.
turn the subtraction sign into an addition sign and the 3 into a negative: 1+-3=-2
signs are different.... Find the difference.... KEEP THE LARGER SIGN signs are the same... COMBINE AND KEEP THE SIGN
If you mean integers, well if you have two integers of the same sign that you are adding, add and the sign stays the same. If you have different signs, subtract and keep the sign of the one that has more. Regular numbers you just add them.
Subtracting an integer is the same as adding the additive inverse. In symbols: a - b = a + (-b), where "-b" is the additive inverse (the opposite) of b.