Maak de erafsom tot 20

Erafsommen
1.
12
–
8
=
2.
4
–
1
=
3.
20
–
12
=
4.
9
–
4
=
5.
5
–
3
=
6.
15
–
8
=
7.
19
–
15
=
8.
5
–
5
=
9.
5
–
4
=
10.
7
–
5
=
11.
9
–
0
=
12.
4
–
3
=
13.
9
–
1
=
14.
12
–
10
=
15.
15
–
0
=
16.
7
–
7
=
17.
14
–
9
=
18.
19
–
16
=
19.
9
–
8
=
20.
7
–
1
=
21.
8
–
1
=
22.
2
–
0
=
23.
4
–
3
=
24.
6
–
5
=
25.
13
–
8
=
26.
15
–
1
=
27.
2
–
0
=
28.
8
–
0
=
29.
12
–
9
=
30.
13
–
6
=
31.
16
–
1
=
32.
7
–
0
=
33.
16
–
2
=
34.
6
–
0
=
35.
5
–
0
=
36.
1
–
1
=
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Maak de erafsom tot 20
| ANTWOORDEN

Erafsommen
1.
12
–
8
=
4
2.
4
–
1
=
3
3.
20
–
12
=
8
4.
9
–
4
=
5
5.
5
–
3
=
2
6.
15
–
8
=
7
7.
19
–
15
=
4
8.
5
–
5
=
0
9.
5
–
4
=
1
10.
7
–
5
=
2
11.
9
–
0
=
9
12.
4
–
3
=
1
13.
9
–
1
=
8
14.
12
–
10
=
2
15.
15
–
0
=
15
16.
7
–
7
=
0
17.
14
–
9
=
5
18.
19
–
16
=
3
19.
9
–
8
=
1
20.
7
–
1
=
6
21.
8
–
1
=
7
22.
2
–
0
=
2
23.
4
–
3
=
1
24.
6
–
5
=
1
25.
13
–
8
=
5
26.
15
–
1
=
14
27.
2
–
0
=
2
28.
8
–
0
=
8
29.
12
–
9
=
3
30.
13
–
6
=
7
31.
16
–
1
=
15
32.
7
–
0
=
7
33.
16
–
2
=
14
34.
6
–
0
=
6
35.
5
–
0
=
5
36.
1
–
1
=
0
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Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen