Answer
two hundred seventy six thousand, four
Work Step by Step
From the right, each set of 3 digits is a period.
$\ \ $thousands
$\overbrace{276},\underbrace{004}$
$\ \ \ \ \ \ \ \ \ \ \ $ones
To write a number in words, write the number for each period,working left to right, in words, followed by the period name. (No name is written for the ones period.) Separate the periods with a comma.
For each 3 digit period, the place values reading from the left are the hundreds, tens and ones place.
276 is in the thousands period. It has 2 in the hundreds place, 7 in the tens place and 6 in the ones place, so is two hundred seventy six thousand.
004 is in the ones period. It has 4 in the ones place, so is four.