#### Answer

$\ \ \ \ \ \ \ \ \ \ \ $ tens hundreds thousands
$1429\ \ \ 1430\ \ \ \ \ \ \ \ 1400\ \ \ \ \ \ \ \ \ 1000$

#### Work Step by Step

$14\underline2\underset\uparrow9$ $\longrightarrow$ ones digit $\geq$ 5, round tens digit up
$1\underline4\underset\uparrow29$ $\longrightarrow$ tens digit < 5, round hundreds digit down
$\underline1\underset\uparrow429$ $\longrightarrow$ hundreds digit < 5, round thousands digit down