If you were to add 12.52, 349.0 and 8.24, how many significant digits should the answer have?

a.
three
c.
five
b.
four
d.
six

Question

If you were to add 12.52, 349.0 and 8.24, how many significant digits should the answer have?

a.
three
c.
five
b.
four
d.
six

ghazi · Answer

five

anonymous · Answer

no it is not 5

ghazi · Answer

well the addition will result 369.76 so you can count it , its five

espex · Answer

Four. In addition and subtraction, the result is rounded off to the last common digit occurring furthest to the right in all components. Another way to state this rule is as follows: in addition and subtraction, the result is rounded off so that it has the same number of digits as the measurement having the fewest decimal places (counting from left to right). For example, 100 (assume 3 significant figures) + 23.643 (5 significant figures) = 123.643, which should be rounded to 124 (3 significant figures). Note, however, that it is possible two numbers have no common digits (significant figures in the same digit column). $$\small source: http://www.chem.sc.edu/faculty/morgan/resources/sigfigs/sigfigs5.html $$