Reken de erafsom tot 20 uit

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

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