Rekensommen met eraf tot 50

Erafsommen
1.
45
–
15
=
2.
50
–
10
=
3.
30
–
0
=
4.
25
–
0
=
5.
50
–
5
=
6.
40
–
10
=
7.
10
–
10
=
8.
10
–
5
=
9.
50
–
0
=
10.
45
–
40
=
11.
10
–
0
=
12.
5
–
0
=
13.
35
–
30
=
14.
10
–
10
=
15.
5
–
0
=
16.
15
–
15
=
17.
35
–
15
=
18.
5
–
0
=
19.
35
–
10
=
20.
25
–
5
=
21.
30
–
15
=
22.
20
–
10
=
23.
50
–
15
=
24.
50
–
0
=
25.
10
–
0
=
26.
40
–
20
=
27.
45
–
25
=
28.
40
–
10
=
29.
45
–
40
=
30.
5
–
5
=
31.
20
–
15
=
32.
25
–
10
=
33.
35
–
10
=
34.
10
–
0
=
35.
30
–
0
=
36.
10
–
5
=
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Rekensommen met eraf tot 50
| ANTWOORDEN

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