Question

Write the number in decimal notation. "Twelve thousand and twelve thousandths"

Answer 1

It's based on place value. Thousand is before the decimal point, and thousandth is after it. Thus, the answer would be twelve thousands, no hundreds, no tens, no ones, decimal point, no tenths, one hundredth, 2 thousandths. (The ten thousandths mean that they carry over into the hundredths place).
12,000.012

Answer 2

12000.00012
^12k       ^12 thousands