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> you just need to understand when a calculator is not giving you what you expected How do you do that if you can't do arithmetic by hand though? At most, when
by oytis 2y ago
> you just need to understand when a calculator is not giving you what you expected
How do you do that if you can't do arithmetic by hand though? At most, when working with integers, you can count digits to check if the order of magnitude is correct.
- lordnacho 2y agoYou can do arithmetic by hand without being fast or accurate. It's still useful to check that calculations are correct, it's just slow for the ancient use of tallying up a bill.