Rekensommen met eraf tot 20

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

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