Reken de erafsom tot 50 uit

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

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