Summary: Learn how to use Windows PowerShell to round numbers. Is there an easy way to use Windows PowerShell to round numbers up or down in a computation that produces a large amount of numbers after the decimal point? Use the static Round method from the [math] class: PS C:> $a = 22/7 PS C:> $a 3.14285714285714 PS C:> [math]::Round($a) 3 PS C:>