Question

1. For the three-part question that follows, provide your answer to each question in the given workspace. Identify

Answer 1

Answer:  a) 6      b) 11.53     c) the smallest number of significant digits is 4

Step-by-step explanation:

a)

Complete the subtraction and addition (you can do this manually by lining up the decimal ... or... using a calculator)

2.784 - 3.00079 + 10.671 + 1.0798 = 11.5340  

→ there are 6 digits in the answer

b & c)

2.784            has 4 significant digits

3.00079       has 6 significant digits

10.671           has 5 significant digits

1.0798          has 5 significant digits

→ the smallest number of significant digits is 4 so round the answer from part a to 4 significant digits:  $\large\boxed{11.53}$