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10 questions
24 + 10 =
25
34
30
10 + 10 + 10 =
20
40
30
95 + 5 =
100
105
95
68 + 2 + 2 =
74
72
71
35 + 5 + 10 =
40
60
50
20 - 9 =
11
10
19
170 - 20 =
190
130
150
45 - 30 =
15
75
10
199 - 99 =
190
100
99
87 - 17 =
97
70
77
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