Reken de erafsom tot 20 uit

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

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