Maak de erafsom tot 20

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

Maak de erafsom tot 20
| ANTWOORDEN

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