Reken de erafsom tot 20 uit

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

Reken de erafsom tot 20 uit
| ANTWOORDEN

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