ChatgPT I have heard is notoriously bad at maths, which is not its specialty. I've heard that asking it to check its answers or check the number of zeros can help a bit. But it is also very gullible and will confirm wrong answers if given false information. Even apologizing for giving correct answers it is told are wrong.
Today I heard about giving ChatGPT access to WOLFRAM ALPHA. I'm impressed by how it seems to notice when it needs a tool to help. Either by providing the answer or giving it extra information that is useful for answering the question itself. The idea seems to be rather than create a general intelligence that does it all, having a variety of tools it can turn to if needed. It can be asked how it answered a question step by step. It will say when it deemed it necessary to use a tool.