Exactly. About a decade ago, when my older DS got problems like these in first and second grade, I was surprised. Back then, there wasn't a name so I refer to them as kiddie algebra problems for lack of a better name. These days, my district has math units specifically labelled "elementary algebra" covering these easy as well as more difficult algebra-like problems as you proceed through the elementary math curriculum. These days, I am also seeing a significant extension of the coverage of geometry topics in elementary math curriculums.