How do you write 617.186 in expanded form?

To write 617.186 in expanded form, you would break down each digit's place value.

6 in the hundreds place is 600, 1 in the tens place is 10, 7 in the ones place is 7, 1 in the tenths place is 0.1, 8 in the hundredths place is 0.08, and 6 in the thousandths place is 0.006.

Therefore, 617.186 in expanded form is 600 + 10 + 7 + 0.1 + 0.08 + 0.006.