Erafsommen oplossen tot 20

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

Erafsommen oplossen tot 20
| ANTWOORDEN

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