Oefen de erafsommen tot 50

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

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