Reken de erafsom tot 20 uit

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

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