Erafsommen tot 50 maken

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

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