第10章 10.10

(1)

$\log 2.75 = 0.4393$

(2)

$\log 435 = \log 4.35 + \log 100 = 0.6385 + 2 = 2.6385$

(3)

$\log 8540 = \log 8.54 + \log 1000 = 0.9315 + 3 = 3.9315$

(4)

$\log 0.0356 = \log 3.56 - \log 100 = 0.5514 - 2 = -1.4486$