Erafsommen oplossen tot 50

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

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