Welk getal uit de deeltafel van 3 ontbreekt?

Deeltafels
1.
18
:
3
=
=
2.
6
:
3
=
=
3.
30
:
3
=
=
4.
18
:
3
=
=
5.
21
:
3
=
=
6.
21
:
3
=
=
7.
21
:
3
=
=
8.
3
:
3
=
=
9.
27
:
3
=
=
10.
24
:
3
=
=
11.
27
:
3
=
=
12.
30
:
3
=
=
13.
30
:
3
=
=
14.
9
:
3
=
=
15.
21
:
3
=
=
16.
9
:
3
=
=
17.
6
:
3
=
=
18.
15
:
3
=
=
19.
21
:
3
=
=
20.
9
:
3
=
=
21.
12
:
3
=
=

Welk getal uit de deeltafel van 3 ontbreekt?
| ANTWOORDEN

Deeltafels
1.
18
:
3
=
=
6
2.
6
:
3
=
=
2
3.
30
:
3
=
=
10
4.
18
:
3
=
=
6
5.
21
:
3
=
=
7
6.
21
:
3
=
=
7
7.
21
:
3
=
=
7
8.
3
:
3
=
=
1
9.
27
:
3
=
=
9
10.
24
:
3
=
=
8
11.
27
:
3
=
=
9
12.
30
:
3
=
=
10
13.
30
:
3
=
=
10
14.
9
:
3
=
=
3
15.
21
:
3
=
=
7
16.
9
:
3
=
=
3
17.
6
:
3
=
=
2
18.
15
:
3
=
=
5
19.
21
:
3
=
=
7
20.
9
:
3
=
=
3
21.
12
:
3
=
=
4