Deelsommen door elkaar. Welk getal ontbreekt?

Deeltafels
1.
9
:
9
=
=
2.
20
:
4
=
=
3.
30
:
6
=
=
4.
50
:
5
=
=
5.
30
:
3
=
=
6.
12
:
3
=
=
7.
60
:
10
=
=
8.
63
:
9
=
=
9.
5
:
5
=
=
10.
20
:
10
=
=
11.
15
:
5
=
=
12.
12
:
4
=
=
13.
15
:
3
=
=
14.
45
:
9
=
=
15.
3
:
1
=
=
16.
40
:
5
=
=
17.
9
:
1
=
=
18.
28
:
7
=
=
19.
5
:
5
=
=
20.
45
:
9
=
=
21.
6
:
6
=
=
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Deelsommen door elkaar. Welk getal ontbreekt?
| ANTWOORDEN

Deeltafels
1.
9
:
9
=
=
1
2.
20
:
4
=
=
5
3.
30
:
6
=
=
5
4.
50
:
5
=
=
10
5.
30
:
3
=
=
10
6.
12
:
3
=
=
4
7.
60
:
10
=
=
6
8.
63
:
9
=
=
7
9.
5
:
5
=
=
1
10.
20
:
10
=
=
2
11.
15
:
5
=
=
3
12.
12
:
4
=
=
3
13.
15
:
3
=
=
5
14.
45
:
9
=
=
5
15.
3
:
1
=
=
3
16.
40
:
5
=
=
8
17.
9
:
1
=
=
9
18.
28
:
7
=
=
4
19.
5
:
5
=
=
1
20.
45
:
9
=
=
5
21.
6
:
6
=
=
1
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen