Welk getal uit de deeltafel van 3 ontbreekt?

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

Welk getal uit de deeltafel van 3 ontbreekt?
| ANTWOORDEN

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