Erafsommen oplossen tot 50

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

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