[
  "Separate the decimal into whole ones and extra tenths. Remember: 1 whole = 10 tenths.",
  "4.5 = 3 ones + 1.5 remainder. Convert 1.5 to tenths: 1 whole is 10 tenths, plus the extra 5 tenths.",
  "4.5 = 3 ones and 15 tenths. Answer: 15."
]