Erafsommen oplossen tot 20

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

Erafsommen oplossen tot 20
| ANTWOORDEN

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