Reken de erafsommen tot 50 uit

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

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