Reken de erafsom tot 50 uit

Erafsommen
1.
10
–
0
=
2.
25
–
25
=
3.
20
–
5
=
4.
5
–
0
=
5.
20
–
10
=
6.
5
–
5
=
7.
50
–
50
=
8.
10
–
0
=
9.
20
–
0
=
10.
5
–
0
=
11.
15
–
5
=
12.
50
–
35
=
13.
15
–
5
=
14.
50
–
35
=
15.
10
–
5
=
16.
30
–
30
=
17.
10
–
5
=
18.
45
–
20
=
19.
5
–
0
=
20.
30
–
5
=
21.
40
–
40
=
22.
50
–
45
=
23.
35
–
0
=
24.
30
–
20
=
25.
10
–
5
=
26.
30
–
25
=
27.
5
–
5
=
28.
5
–
0
=
29.
45
–
10
=
30.
10
–
0
=
31.
15
–
0
=
32.
35
–
5
=
33.
35
–
15
=
34.
30
–
30
=
35.
40
–
0
=
36.
5
–
5
=
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Reken de erafsom tot 50 uit
| ANTWOORDEN

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