Question

solve 77.94 - 5.8 + 201.681 using the rules of significant figures

Answer 1

When adding significant figures, the answer should have as many significant figures with the smallest number of significant figures.

Answer 2

so 77.94 - 5.8 = 72.14, but since 5.8 has only 2 sig figs, you would have to write 72 down

Answer 3

Thanks man!