Reken de erafsom tot 20 uit

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

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