Comment by Kim_Bruning

Indeed! So, where are you going with this?

For my contribution to the conversation: Earlier/cheaper models can't do it either, they make mistakes, they need a calculator/jupiter kernel/what have you. 'Medium' models will put the numbers underneath each other and do it 'properly' in a table, checking themselves after. Claude Opus 4.6 (the current rolls royce today) just says the answer in one go sometimes (it's a monster). But all of them end up spending many seconds and thousands of tokens on a task that takes a calculator or an ALU fractions of a second.