Reken de erafsom tot 20 uit

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

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