How do you write 3.9 in expanded form?

Answer 1

To write 3.9 in expanded form, you would break down the number into its individual place values. In this case, 3 represents the whole number part and 9 represents the decimal part. Therefore, 3.9 in expanded form is 3 + 9/10.

Answer 2

3.9 = 4.9=6.9