Reken de erafsom tot 50 uit

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

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