Maak de erafsom tot 50

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

Maak de erafsom tot 50
| ANTWOORDEN

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