Reken de erafsom tot 50 uit

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

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