Maak de erafsom tot 20

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

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