Reken de erafsom tot 20 uit

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

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