Question

How many significant figures will there be in the answer to the following problem? You do not have to solve the problem.

6.783 - 2.56 =

How many significant figures will there be in the answer to the following problem? You do not have to solve the problem.

6.783 - 2.56 =

Answer 1

the answer will have 4 significant figures

Answer 2

we are given with two numbers: 6.783 and 2.56. One rule of significant figure is that non-zeros are significant. 6.783 has 4 siginificant figures while 2.56 has 3 significant figures. The difference between the two numbers is a value that has 4 significant figures.