Answer
45.90
Work Step by Step
The first mark to the left of the 0 is:$\ \ \ \ 45\ \ \ \ \ \ $ mm
The mark that most nearly lines up is:$\underline{\ \ \ 0.90\ }$ mm
The total measurement is:$\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 45.90\ $ mm
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