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10 questions
10 - 5 = __
5
15
15 - 10 = __
25
50 - 50 = __
0
100
78 - 58 = __
100 - 50 = __
25 - 10 = __
75 - 0 = __
75
80 - 40 = __
120
40
55 - 15 = __
65
90 - 30 = __
60
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