Erafsommen oplossen tot 50

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

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