If asked to add 8 and -2, we would start by moving eight units to the right of zero. Then we would move two units left from there because negative numbers make us move to the left side of the number line since our last positive is six units to the right of zero, the answer is 6
with negatives its basically going backwards, for example, (-2)+ 17=15 just go backwards.
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Adding two numbers with different signs means subtracting the two absolute integers (without sign) and vice versa.
To add two integers with unlike signs: -- Find the difference between their sizes, ignoring their signs. -- Give the difference the sign of the integer with the larger size.
The value of the quotient of two integers with different signs is the same as if the signs were the same. Because the numbers have different signs, the quotient is negative.
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.
Two integerss add to zero when their absolute values are equal and they have opposite signs.