Reken de erafsom tot 20 uit

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

Reken de erafsom tot 20 uit
| ANTWOORDEN

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