Maak de erafsom tot 20

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

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