## Basic College Mathematics (9th Edition)

Three thousand four hundred fifty-six written in standard form is $3456$.
Three thousand four hundred fifty-six consists of three thousands, four hundreds, fifty tens and six ones. Three thousands can be written as $3000$, four hundreds can be written as $400$, fifty tens can be written as $50$ and six ones can be written as $6$ hence three thousand four hundred fifty-six written in standard form is $3456$.