Reken de erafsom tot 50 uit

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

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