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mathleaks.com

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Round to nearest integer

Theory

Round to nearest integer

When rounding to integers, look at the first decimal. If that digit is $0, 1, 2, 3,$ or $4,$ round down, and if it's $5, 6, 7, 8,$ or $9,$ round up. See the following examples.

Number	$\approx$
$639.693$	$640$
$2.3$	$2$
$90.6$	$91$
$16.06$	$16$