Each correct answer gives a number. Use the scrambled letter map to translate those numbers into letters. The five letters you uncover form an anagram – solve it to unlock the codeword. Round normally to get to a rational number, if needed.
15 = N | 7 = R | 20 = J | 12 = K | 5 = F | 2 = S | 8 = I | 0 = E | 6 = H | 1 = T















