Erafsommen tot 50 maken

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

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