To my old school thinking, it (114) is recognized by determining the difference between 9,886 and 10,000, which we called subtraction.
One of my kids was struggling with h.s. physics, and asked me for help. She told me how the teacher told them how to solve, which confused me. I showed her my old school way (creating and reducing equivalencies to solve for the unknown) and got the correct answer quickly. She did several more my way and got the correct answer. Then she said "That's too easy!
Our education industry is just that, and is creating puffery to require and create more of itself.
Once a person understands math basics (a process that seems to have escaped CC), performing certain calculations in one’s head become second nature. Take for example 347 + 122 (I just grabbed the first numbers that came into my head). Once a person understands the basics of adding and subtracting and the relationship between the decimal sets, the answer to this equation is easily solved without pencil, paper, or calculator:
347 + 3 = 350
122 - 3 = 119
350 + 100 = 450 + 10 = 460 + 9 = 469
I was able to do this in my head in three seconds.