Reken de erafsom tot 50 uit

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

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