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dodawanie i odejmowanie do 20
0
%
0
0
0
Back
Restart
20 - 8 =
13
12
14
11
Oops!
Okay!
19 - 6 =
13
15
12
14
Oops!
Okay!
19 - 8 =
11
12
13
10
Oops!
Okay!
17 - 2 =
14
15
17
16
Oops!
Okay!
13 + 0 =
14
12
13
11
Oops!
Okay!
11 + 9 =
19
20
21
18
Oops!
Okay!
14 + 6 =
21
18
19
20
Oops!
Okay!
11+ 8 =
18
17
19
20
Oops!
Okay!
14 + 5 =
18
17
20
19
Oops!
Okay!
12 + 5 =
116
20
17
18
Oops!
Okay!
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