What is the standard form of twenty-two ten thousandths?

what place is the ten thousandths in?  Now place a 22 so that it ends at that place.

ones. tenths , hundredths, thousandths, ten thousandths

  0   .    0             0                  0                     22    

since each place can only hold the digits 0 - 9, the first two will need to move into the thousandths place.

0.0022