Reken de erafsom tot 20 uit

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

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