Welk getal uit de deeltafel van 1 ontbreekt?

Deeltafels
1.
7
:
1
=
=
2.
10
:
1
=
=
3.
2
:
1
=
=
4.
5
:
1
=
=
5.
6
:
1
=
=
6.
4
:
1
=
=
7.
7
:
1
=
=
8.
9
:
1
=
=
9.
1
:
1
=
=
10.
5
:
1
=
=
11.
3
:
1
=
=
12.
10
:
1
=
=
13.
1
:
1
=
=
14.
7
:
1
=
=
15.
7
:
1
=
=
16.
4
:
1
=
=
17.
5
:
1
=
=
18.
9
:
1
=
=
19.
6
:
1
=
=
20.
2
:
1
=
=
21.
4
:
1
=
=

Welk getal uit de deeltafel van 1 ontbreekt?
| ANTWOORDEN

Deeltafels
1.
7
:
1
=
=
7
2.
10
:
1
=
=
10
3.
2
:
1
=
=
2
4.
5
:
1
=
=
5
5.
6
:
1
=
=
6
6.
4
:
1
=
=
4
7.
7
:
1
=
=
7
8.
9
:
1
=
=
9
9.
1
:
1
=
=
1
10.
5
:
1
=
=
5
11.
3
:
1
=
=
3
12.
10
:
1
=
=
10
13.
1
:
1
=
=
1
14.
7
:
1
=
=
7
15.
7
:
1
=
=
7
16.
4
:
1
=
=
4
17.
5
:
1
=
=
5
18.
9
:
1
=
=
9
19.
6
:
1
=
=
6
20.
2
:
1
=
=
2
21.
4
:
1
=
=
4