Deelsommen door elkaar. Welk getal ontbreekt?

Deeltafels
1.
21
:
3
=
=
2.
24
:
6
=
=
3.
90
:
10
=
=
4.
24
:
6
=
=
5.
54
:
9
=
=
6.
15
:
3
=
=
7.
16
:
2
=
=
8.
21
:
7
=
=
9.
20
:
4
=
=
10.
20
:
10
=
=
11.
30
:
3
=
=
12.
18
:
3
=
=
13.
8
:
2
=
=
14.
28
:
7
=
=
15.
8
:
8
=
=
16.
15
:
5
=
=
17.
5
:
1
=
=
18.
14
:
2
=
=
19.
36
:
4
=
=
20.
10
:
10
=
=
21.
25
:
5
=
=
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Deelsommen door elkaar. Welk getal ontbreekt?
| ANTWOORDEN

Deeltafels
1.
21
:
3
=
=
7
2.
24
:
6
=
=
4
3.
90
:
10
=
=
9
4.
24
:
6
=
=
4
5.
54
:
9
=
=
6
6.
15
:
3
=
=
5
7.
16
:
2
=
=
8
8.
21
:
7
=
=
3
9.
20
:
4
=
=
5
10.
20
:
10
=
=
2
11.
30
:
3
=
=
10
12.
18
:
3
=
=
6
13.
8
:
2
=
=
4
14.
28
:
7
=
=
4
15.
8
:
8
=
=
1
16.
15
:
5
=
=
3
17.
5
:
1
=
=
5
18.
14
:
2
=
=
7
19.
36
:
4
=
=
9
20.
10
:
10
=
=
1
21.
25
:
5
=
=
5
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen