Standard form math

Question

Write fifteen and three hundredths in standard form

Answer 1

15.03

= 15 plus 3 hundredths

or 15.03 = 1.503 x 10^1 in scientific notation

OR maybe you meant (15+3) hundredths

which equals 18 hundredths = 0.18 = 1.8 x 10^-1

it's slightly ambiguous as written