SmallTalk has the left-to-right for everything principle because everything is message passing and "operators" are just binary (as in two argument) messages whi

SmallTalk has the left-to-right for everything principle because everything is message passing and "operators" are just binary (as in two argument) messages which catches many out. 2 - 1 * 5 will return 5, while many would expect -3. You must apply parentheses if you want a precedence other than ltr.