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● 4.5 – 5.2 = 5.5 – 5.2 - 1 = 0.3
● 5.5 – 6.2 = 5.5 – 5.2 - 0.7 = -0.4
● 5.5 – 4.2 = 5.5 – 5.2 + 0.3 = 0.6