Reken de erafsom tot 20 uit

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

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