Reken de erafsom tot 20 uit

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

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