Reken de erafsommen tot 50 uit

Erafsommen
1.
10
-
0
=
0
10
2.
5
-
5
=
0
5
3.
50
-
20
=
20
30
4.
25
-
15
=
5
10
5.
25
-
25
=
10
0
6.
25
-
25
=
20
0
7.
40
-
40
=
20
0
8.
40
-
40
=
20
0
9.
35
-
15
=
30
20
10.
45
-
40
=
10
5
11.
30
-
20
=
0
10
12.
40
-
15
=
30
25
13.
15
-
10
=
15
5
14.
20
-
0
=
30
20
15.
30
-
20
=
5
10
16.
45
-
5
=
40
25
17.
40
-
0
=
40
25
18.
15
-
5
=
10
0
19.
35
-
35
=
0
10
20.
50
-
0
=
50
30
21.
50
-
20
=
30
25
22.
25
-
10
=
15
25
23.
5
-
0
=
10
5
24.
30
-
10
=
20
30
25.
30
-
25
=
25
5
26.
15
-
0
=
15
5
27.
45
-
15
=
20
30
28.
40
-
40
=
0
15
© JuniorEinstein.nl
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Reken de erafsommen tot 50 uit
| ANTWOORDEN

Erafsommen
1.
10
-
0
=
0
10
2.
5
-
5
=
0
5
3.
50
-
20
=
20
30
4.
25
-
15
=
5
10
5.
25
-
25
=
10
0
6.
25
-
25
=
20
0
7.
40
-
40
=
20
0
8.
40
-
40
=
20
0
9.
35
-
15
=
30
20
10.
45
-
40
=
10
5
11.
30
-
20
=
0
10
12.
40
-
15
=
30
25
13.
15
-
10
=
15
5
14.
20
-
0
=
30
20
15.
30
-
20
=
5
10
16.
45
-
5
=
40
25
17.
40
-
0
=
40
25
18.
15
-
5
=
10
0
19.
35
-
35
=
0
10
20.
50
-
0
=
50
30
21.
50
-
20
=
30
25
22.
25
-
10
=
15
25
23.
5
-
0
=
10
5
24.
30
-
10
=
20
30
25.
30
-
25
=
25
5
26.
15
-
0
=
15
5
27.
45
-
15
=
20
30
28.
40
-
40
=
0
15
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen