89 减法 15 等于多少?
89 - 15 = 74
89减法15 等于 74
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- 用加法验算:74 + 15 = 89
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89 - 14 = 75
89 - 16 = 73
89 - 13 = 76
89 - 17 = 72
89 - 12 = 77
89 - 18 = 71
89 - 11 = 78
89 - 19 = 70
88 - 15 = 73
90 - 15 = 75
87 - 15 = 72
91 - 15 = 76
92 - 15 = 77
86 - 15 = 71
93 - 15 = 78
85 - 15 = 70
75 - 1 = 74
76 - 2 = 74
77 - 3 = 74
78 - 4 = 74
79 - 5 = 74
80 - 6 = 74
73 - 32 = 41
97 - 7 = 90
82 - 41 = 41
55 - 55 = 0
66 - 2 = 64
25 - 24 = 1
43 + 31 = 74
47 + 27 = 74