Welk getal uit de tafel van 20 ontbreekt?
Tafels
1.
×
=
20
1
________
2.
×
=
20
9
________
3.
×
=
20
7
________
4.
×
=
20
4
________
5.
×
=
20
9
________
6.
×
=
20
1
________
7.
×
=
20
1
________
8.
×
=
20
9
________
9.
×
=
20
3
________
10.
×
=
20
4
________
11.
×
=
20
6
________
12.
×
=
20
2
________
13.
×
=
20
4
________
14.
×
=
20
1
________
15.
×
=
20
2
________
16.
×
=
20
1
________
17.
×
=
20
10
________
18.
×
=
20
10
________
19.
×
=
20
10
________
20.
×
=
20
2
________
21.
×
=
20
10
________
22.
×
=
20
8
________
23.
×
=
20
2
________
24.
×
=
20
4
________
Welk getal uit de tafel van 20 ontbreekt?
| ANTWOORDEN
Tafels
1.
×
=
20
1
20
2.
×
=
20
9
180
3.
×
=
20
7
140
4.
×
=
20
4
80
5.
×
=
20
9
180
6.
×
=
20
1
20
7.
×
=
20
1
20
8.
×
=
20
9
180
9.
×
=
20
3
60
10.
×
=
20
4
80
11.
×
=
20
6
120
12.
×
=
20
2
40
13.
×
=
20
4
80
14.
×
=
20
1
20
15.
×
=
20
2
40
16.
×
=
20
1
20
17.
×
=
20
10
200
18.
×
=
20
10
200
19.
×
=
20
10
200
20.
×
=
20
2
40
21.
×
=
20
10
200
22.
×
=
20
8
160
23.
×
=
20
2
40
24.
×
=
20
4
80