Aspects

Add

Addition is a mathematical operation that represents combining collections of objects together into a larger collection

Subtraction

Subtraction is a mathematical operation that represents the removal of an object from a collection.

Others

Quality | Example |
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Assignment lower procedure |
"Addition subtraction assignment has lower procedure than simply add operation" from question "Can't understand x *= y+1 output" |

Worse |
"Addition and subtraction is worse as these have to be done in sequence of two operations and the second operation requires the first to have completed - this is not the case if the compiler is just producing two add operations on independent data" from question "What is the performance impact of using int64_t instead of int32_t on 32-bit systems?" |