Welk getal uit de deeltafel van 20 ontbreekt?

Deeltafels
1.
20
:
20
=
=
2.
180
:
20
=
=
3.
60
:
20
=
=
4.
140
:
20
=
=
5.
200
:
20
=
=
6.
200
:
20
=
=
7.
60
:
20
=
=
8.
200
:
20
=
=
9.
20
:
20
=
=
10.
140
:
20
=
=
11.
80
:
20
=
=
12.
120
:
20
=
=
13.
100
:
20
=
=
14.
100
:
20
=
=
15.
180
:
20
=
=
16.
180
:
20
=
=
17.
20
:
20
=
=
18.
100
:
20
=
=
19.
140
:
20
=
=
20.
200
:
20
=
=
21.
140
:
20
=
=

Welk getal uit de deeltafel van 20 ontbreekt?
| ANTWOORDEN

Deeltafels
1.
20
:
20
=
=
1
2.
180
:
20
=
=
9
3.
60
:
20
=
=
3
4.
140
:
20
=
=
7
5.
200
:
20
=
=
10
6.
200
:
20
=
=
10
7.
60
:
20
=
=
3
8.
200
:
20
=
=
10
9.
20
:
20
=
=
1
10.
140
:
20
=
=
7
11.
80
:
20
=
=
4
12.
120
:
20
=
=
6
13.
100
:
20
=
=
5
14.
100
:
20
=
=
5
15.
180
:
20
=
=
9
16.
180
:
20
=
=
9
17.
20
:
20
=
=
1
18.
100
:
20
=
=
5
19.
140
:
20
=
=
7
20.
200
:
20
=
=
10
21.
140
:
20
=
=
7