# Significant figures question

Found 14th Jan

If 3.4 x 1.23 = 4.182

Obviously, if that were the only calculation the answer would be 4.2.

However, in multi-stage calculations, how would I carry the amount over? Would it be to the lowest number of significant figures +1 (4.18 or the higher number +1 (4.182)?

Thank you

Obviously, if that were the only calculation the answer would be 4.2.

However, in multi-stage calculations, how would I carry the amount over? Would it be to the lowest number of significant figures +1 (4.18 or the higher number +1 (4.182)?

Thank you

Brackets of Division Multiplication Addition Subtraction.

Happy to hear other view points, I did A level math but back in the day....!

depending on the number of calculation iterations, large significant figures can still produce inaccuracy. i always use the maximum significant figures that the system will allow in the iterations.

Not sure what this is contributing.......

A proper exam question (pre 1980s and the mass dumbing down of education standards started by the C*ntservatives) would have included an instruction as to the number of significant places to which the calculation should be made.

I took did Os in 1972. Today, it probably awards marks for your PC contemplation the feelings of the places that have been rounded down (and sadly, many students could probably answer that with more gusto than calculate the answer).

Edited by:"Toptrumpet" 14th JanEven students doing their “dumbed down” exam papers would have took the time to read the question and not just jumped right in ahead of themselves

Edited by:"Dannyrobbo" 14th JanSo answer would be 4.2, but if you are continuing you would use 4.18.