Erafsommen tot 50 maken

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

Erafsommen tot 50 maken
| ANTWOORDEN

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