Oefen de erafsommen tot 50

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

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