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8 questions
30x40
120
1200
100
210
100-81
20
18
19
21
8/2
2
4
6
3
9-17
-8
8
7
-7
140:2
60
62
70
28
14:100
1,4
140
0,14
14
50% de 820
310
415
410
405
75% de 200
175
110
100
150
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