Rekensommen met eraf tot 20

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

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