The answer depends on which binary operation you mean when you say "combining". Addition, subtraction, multiplication, division, exponentiation, etc.
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Opposite integers have the same magnitudes, but different signs. Examples of an opposite integers: 10 and -10, -298 and 298.
Depends on how large each integer is. +1-2 or +2-1. Different signs depending on the size of the integers.
When multiplying integers, multiplying by the same sign will always produce a positive integer. Such as a negative times a negative equals a positive. If the signs are different then the product will be a negative.
- 8/2= - 4====8/ -2= - 4=====Works that way as different signs implies a negative integer must be involved. Have you teacher explain this on the number line.
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.