Rekensommen met eraf tot 20

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

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