Maak de erafsom tot 50

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

Maak de erafsom tot 50
| ANTWOORDEN

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