Erafsommen oplossen tot 50

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

Erafsommen oplossen tot 50
| ANTWOORDEN

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