Question

Label the place value 12,354.897

Answer 1

L'll assume you're asking for each numbers place value.
12,354.897 (I'll go from left to right)

1 is in the ten thousands place.

2 is in the thousands place.

3 is in the hundreds place.

5 is in the tens place.

4 is in the ones place.

8 is in the tenths place. (Notice the "th" at the end of ten here. Numbers
behind the decimal end in "th". Also, there's no ones place behind the
decimal)

9 is in the hundredths place.

7 is in the thousandths place.

Answer 2

From left to right

Ten thousands, thousands, hundreds, tens, ones, tenths, hundreths, thousandths,