Question

Which is smaller$?$

$177,133,345$ or $171,331,345$

Answer 1

Place the given number in the place value chart.

H-M	T-M	M	H-Th	T-Th	Th	H	T	O
$1$	$7$	$7$	$1$	$3$	$3$	$3$	$4$	$5$
$1$	$7$	$1$	$3$	$3$	$1$	$3$	$4$	$5$

The digits in the million place are different.

The fact $1<7$ implies that $171,331,345<177,133,345$

Hence, $171,331,345$ is smaller than $177,133,345$.