Why do people invent these strange terms?<p>&quot;wraparound arithmetic&quot;. &quot;unchecked arithmetics&quot;. Really?<p>The correct term is <i>modular arithmetic</i>, which is well established in maths for centuries. And it is properly backed by a really nice and almost dead-simple theory (at least from a programmer&#x27;s point of view). Is this no longer taught in school?<p>If you like to emphasize the fact that it&#x27;s mostly modulo a power of two (2^n), then call it <i>two&#x27;s complement</i>. However, that overemphasizes the binary representation, which I find most of the time more distracting than helpful.<p>As a side note, integer division is usually <i>not performed</i> in modular arithmetics, but addition, subtraction and multiplication are.