cálculo

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1.
1 point
4 x 5 + 11
2.
1 point
9 x 3 + 6
3.
1 point
8 x 8 - 4
4.
1 point
9 x 7 - 4
5.
1 point
6 x 6 + 9
6.
1 point
8 x 6 + 3
7.
1 point
9 x 5 - 9
8.
1 point
5 x 8 + 6
9.
1 point
8 x 9 - 3
10.
1 point
4 x 8 - 3
11.
1 point
6 x 7 - 5
12.
1 point
7 x 8 - 5
13.
1 point
9 x 6 + 5
14.
1 point
7 x 5 - 5
15.
1 point
7 x 7 + 9
16.
20 points
7 x 4 + 3
17.
1 point
9 x 9 - 10
18.
1 point
5 x 5 + 9
19.
1 point
8 x 5 - 9
20.
1 point
7 x 7 + 6