Noah reads the problem, "Evaluate each expression, giving the answer in scientific notation." The first problem part is: 5.4 x 105 +2.3 x 10*. Noah says, "I can rewrite 5.4 x 105 as 54 x 10*. Now
I can add the numbers: 54 x 10+ + 2.3 x 10* = 56.3 x 10^." Do you agree with Noah's solution
to the problem? Explain your reasoning.