Erafsommen oplossen tot 50

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

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