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door Sangohan
5 kwesties
1.
28 - 16 =
a
12
b
13
c
14
d
15
2.
54 - 45 =
a
8
b
9
c
10
d
11
3.
67 - 45 =
a
22
b
23
c
24
d
25
4.
64 - 32 =
a
31
b
32
c
33
d
34
5.
75 - 63 =
a
10
b
11
c
12
d
13
1:a
2:b
3:a
4:b
5:c
