Erafsommen oplossen tot 50

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

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