How many sig figs do i write down for this: (2.06/5.999)+156.5?

Answer 1

3 because you always use the lowest number of digits in a number as your sig fis

Answer 2

1 sig fig after the decimal because after 2.06/5.999 you'd need 3 sig figs total but since it is initially an addition problem you'd need 1 digit after the decimal because 156.5 only has 1 digit after the decimal.