Chapter 1, Problem 55RQ

Perform the following arithmetic and round off the answers to the correct number of significant figures. Include the correct units with the answers.

$\begin{array}{l}\left(\text{a}\right)\text{ 0}\text{.0023 m x 315 m}\hfill \\ \left(\text{b}\right)\text{84}\text{.25 kg - 0}\text{.01075 kg}\hfill \\ \left(\text{c}\right)\left(\text{184}\text{.45 g - 94}\text{.45 g}\right)\text{/}\left(\text{31}\text{.4 mL - 9}\text{.9 mL}\right)\hfill \\ \left(\text{d}\right)\left(\text{23}\text{.4 g + 102}\text{.4 g + 0}\text{.003 g}\right)\text{/}\left(\text{6}\text{.478 mL}\right)\hfill \\ \left(\text{c}\right)\left(\text{313}\text{.44 cm — 209}\text{.1 cm}\right)\text{ x 8}\text{.2234 cm}\hfill \\ \hfill \end{array}$