I guess spelling didn't matter to you either? 🙄

Pointing out spelling mistakes is lame af. Yup it totally doesnt. Who cares lmfao

Calculator is an alternative to the mental arithmetic sweetie

And there's no alternative which allows you to use it without any required prior knowledge on how to use it. And therefore we use the calculator as an alternative for larger calculations.

Yes we still want kids to know that 2 times 2 is four without using a calculator. Go figure why.

Because like I said, the mind is faster with smaller calculations. And, like I said, digital clocks are more convenient alternative to analog ones.