Deelsommen door elkaar. Welk getal ontbreekt?

Deeltafels
1.
9
:
9
=
=
2.
25
:
5
=
=
3.
18
:
3
=
=
4.
18
:
3
=
=
5.
24
:
8
=
=
6.
15
:
3
=
=
7.
14
:
2
=
=
8.
40
:
10
=
=
9.
90
:
10
=
=
10.
20
:
10
=
=
11.
35
:
5
=
=
12.
30
:
5
=
=
13.
27
:
3
=
=
14.
15
:
5
=
=
15.
8
:
8
=
=
16.
8
:
2
=
=
17.
8
:
2
=
=
18.
6
:
2
=
=
19.
1
:
1
=
=
20.
2
:
1
=
=
21.
42
:
7
=
=
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Deelsommen door elkaar. Welk getal ontbreekt?
| ANTWOORDEN

Deeltafels
1.
9
:
9
=
=
1
2.
25
:
5
=
=
5
3.
18
:
3
=
=
6
4.
18
:
3
=
=
6
5.
24
:
8
=
=
3
6.
15
:
3
=
=
5
7.
14
:
2
=
=
7
8.
40
:
10
=
=
4
9.
90
:
10
=
=
9
10.
20
:
10
=
=
2
11.
35
:
5
=
=
7
12.
30
:
5
=
=
6
13.
27
:
3
=
=
9
14.
15
:
5
=
=
3
15.
8
:
8
=
=
1
16.
8
:
2
=
=
4
17.
8
:
2
=
=
4
18.
6
:
2
=
=
3
19.
1
:
1
=
=
1
20.
2
:
1
=
=
2
21.
42
:
7
=
=
6
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen