[
  "86.215: digits after decimal: 2 (tenths), 1 (hundredths), 5 (thousandths).",
  "Value of 1 = 1 x 0.01 = 0.01. Value of 5 = 5 x 0.001 = 0.005.",
  "(a)=0.01, (b)=2, (c)=0.005."
]