Welk getal uit de deeltafel van 1 ontbreekt?

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

Welk getal uit de deeltafel van 1 ontbreekt?
| ANTWOORDEN

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