#### Answer

1550

#### Work Step by Step

$\ \ \ 31$
$\underline{\times50}$
$\ 155$
Since multiplying by 50, a zero should have been written in the ones place before multiplying 31x5.

Published by
Pearson

ISBN 10:
0321955048

ISBN 13:
978-0-32195-504-3

1550

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