Reken de erafsom tot 50 uit

Erafsommen
1.
10
–
0
=
2.
5
–
0
=
3.
35
–
25
=
4.
20
–
15
=
5.
20
–
5
=
6.
35
–
25
=
7.
25
–
0
=
8.
25
–
10
=
9.
15
–
0
=
10.
15
–
15
=
11.
10
–
10
=
12.
5
–
5
=
13.
10
–
0
=
14.
5
–
0
=
15.
25
–
15
=
16.
20
–
15
=
17.
10
–
0
=
18.
10
–
0
=
19.
20
–
5
=
20.
10
–
10
=
21.
35
–
25
=
22.
50
–
25
=
23.
10
–
10
=
24.
45
–
5
=
25.
20
–
20
=
26.
10
–
5
=
27.
10
–
0
=
28.
15
–
10
=
29.
25
–
25
=
30.
25
–
20
=
31.
50
–
5
=
32.
50
–
25
=
33.
30
–
0
=
34.
10
–
5
=
35.
10
–
10
=
36.
25
–
5
=
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Reken de erafsom tot 50 uit
| ANTWOORDEN

Erafsommen
1.
10
–
0
=
10
2.
5
–
0
=
5
3.
35
–
25
=
10
4.
20
–
15
=
5
5.
20
–
5
=
15
6.
35
–
25
=
10
7.
25
–
0
=
25
8.
25
–
10
=
15
9.
15
–
0
=
15
10.
15
–
15
=
0
11.
10
–
10
=
0
12.
5
–
5
=
0
13.
10
–
0
=
10
14.
5
–
0
=
5
15.
25
–
15
=
10
16.
20
–
15
=
5
17.
10
–
0
=
10
18.
10
–
0
=
10
19.
20
–
5
=
15
20.
10
–
10
=
0
21.
35
–
25
=
10
22.
50
–
25
=
25
23.
10
–
10
=
0
24.
45
–
5
=
40
25.
20
–
20
=
0
26.
10
–
5
=
5
27.
10
–
0
=
10
28.
15
–
10
=
5
29.
25
–
25
=
0
30.
25
–
20
=
5
31.
50
–
5
=
45
32.
50
–
25
=
25
33.
30
–
0
=
30
34.
10
–
5
=
5
35.
10
–
10
=
0
36.
25
–
5
=
20
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen