問題13の解答
A = 52.145 + 1.245 = 53.390
B = 53.390 - 2.143 = 51.247
C = 53.390 - 1.864 = 51.526
D = 53.390 - 1.045 = 52.345
E = 52.345 + 1.478 = 53.823
F = 53.823 - 2.105 = 51.718
G = 53.823 - 1.779 = 52.044
H = 52.044 + 1.328 = 53.372
I = 53.372 - 1.069 = 52.303