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Atņemšana 20 apjomā.
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19 − 7 = ?
12
10
11
Oops!
Okay!
17-2=?
13
16
15
Oops!
Okay!
15 − 7 = ?
6
7
8
Oops!
Okay!
20 − 9 = ?
9
11
12
Oops!
Okay!
12 − 5 = ?
11
7
6
Oops!
Okay!
13 − 8 = ?
4
5
6
Oops!
Okay!
16 − 4 = ?
12
10
13
Oops!
Okay!
20-0=?
10
20
1
Oops!
Okay!
5-2=?
2
3
1
Oops!
Okay!
18 − 10 = ?
6
8
10
Oops!
Okay!
14 − 6 = ?
7
5
8
Oops!
Okay!
16-8=?
8
9
6
Oops!
Okay!
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