Answer
$0.00812$ is smaller.
Work Step by Step
We have
$$ 0.00812=8.12\times 10^{-3}, \quad 0.0318=3.18\times 10^{-2}.$$
Since the exponents satisfy $-3\lt -2$, then $0.00812$ is smaller.
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 2 - Section 2.6 - Scientific Notation - Exercises - Page 127: 58
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