Maak de erafsom tot 20

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

Maak de erafsom tot 20
| ANTWOORDEN

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