Reken de erafsom tot 20 uit

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

Reken de erafsom tot 20 uit
| ANTWOORDEN

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