Maak de som uit de tafel van 1 kloppend
Tafels
1.
×
=
1
4
________
2.
×
=
1
9
________
3.
×
=
1
6
________
4.
×
=
1
8
________
5.
×
=
1
10
________
6.
×
=
1
6
________
7.
×
=
1
9
________
8.
×
=
1
4
________
9.
×
=
1
10
________
10.
×
=
1
2
________
11.
×
=
1
8
________
12.
×
=
1
3
________
13.
×
=
1
3
________
14.
×
=
1
6
________
15.
×
=
1
9
________
16.
×
=
1
4
________
17.
×
=
1
2
________
18.
×
=
1
10
________
19.
×
=
1
8
________
20.
×
=
1
10
________
21.
×
=
1
4
________
22.
×
=
1
10
________
23.
×
=
1
9
________
24.
×
=
1
4
________