Reken de erafsom tot 50 uit

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

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