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54 - 2 = 52
56 - 2 = 54
53 and 2/3
3 1/2
54 − 362/5 = 88/5 or 173/5
54 - 38 = 16
54 - 13 = 41
-18 - 54 = -72
(-54) - 23 = -77
t2 - 59t + 54 - 82t2 + 60t = - 81t2 + t + 54
-1-54 = -55
6278
-24