Reken de erafsommen tot 50 uit

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

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