Final answer:
To write 302.78 in word form, it is three hundred two and seventy-eight hundredths. To write 15.023 in word form, it is fifteen and twenty-three thousandths.
Step-by-step explanation:
To write the decimal 302.78 in word form, we can break it down into place values. The digit 3 is in the hundreds place, 0 is in the tens place, 2 is in the ones place, 7 is in the tenth place, and 8 is in the hundredth place. Putting it together, we have three hundred two and seventy-eight hundredths.
Similarly, to write the decimal 15.023 in word form, we have the digit 1 in the tens place, 5 in the ones place, 0 in the tenth place, 2 in the hundredths place, and 3 in the thousandth place. So, it can be written as fifteen and twenty-three thousandths.