数字运算：减去1946再减60，结果及步骤
1989 - 1946 = 43，60 - 43 = 17 1974 - 1946 = 28，60 - 28 = 32 1981 - 1946 = 35，60 - 35 = 25 1972 - 1946 = 26，60 - 26 = 34 1970 - 1946 = 24，60 - 24 = 36 1970 - 1946 = 24，60 - 24 = 36 1943 - 1946 = -3，60 - (-3) = 63 1980 - 1946 = 34，60 - 34 = 26 1987 - 1946 = 41，60 - 41 = 19 1965 - 1946 = 19，60 - 19 = 41
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