Not over 50...had to learn it.
Never have depended on a calculator for math, so much...usually cannot find it.
When I have been in college classes where math is a part of the material/all of the material, I have realized how crippled calculators have caused people to be... people far brighter than I am. Sometimes a calculator slows me down actually...you know, because I have to find my glasses, or ask someone across the room to hold it for me.
However, by simply being able to add/sub/div/mul two numbers of more than two digits in my head younger people have dropped their jaw and perceived this to be evidence of brilliance...hardly...NO...far from it...just an old woman who did not have a calculator until after learning how to use my black CRC book of tables to take "a short cut" in high school trig and calculus. |
